ta

package module

v0.2.0 Latest Latest Go to latest Published: Mar 17, 2026 License: BSD-3-Clause Imports: 4 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/TA-Lib/ta-lib-cgo

Links

Open Source Insights

README ¶

ta-lib-cgo

Go bindings for TA-Lib that embed the C source directly — no system library installation required. Users need only go get. A working CGO environment is the only requirement, works out of the box with typical Go toolchain installations.

Note: The maintainers of TA-Lib have graciously accepted this project under the official TA-Lib GitHub organization. The import path has changed to github.com/TA-Lib/ta-lib-cgo and this is the canonical location going forward.

Quick start

import ta "github.com/TA-Lib/ta-lib-cgo"

// SMA over 10 prices with a 3-bar period.
prices := []float64{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
result := ta.Sma(prices, 3, nil)
// result: [NaN, NaN, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0]

// MACD.
macd, signal, hist := ta.Macd(prices, 12, 26, 9, nil, nil, nil)

outBuf pattern

Pass a slice as the last argument(s) to reuse an existing buffer and avoid allocation:

buf := make([]float64, 0, 1000) // allocate once

for _, batch := range batches {
    result := ta.Sma(batch, 20, buf) // reuses buf if cap >= len(batch)
    process(result)
    buf = result // keep the buffer for next iteration
}

If outBuf is nil or its capacity is less than the input length, a new slice is allocated.

Lookback and NaN padding

All output slices have the same length as the input. The first Lookback positions are filled with NaN (the "warmup" period where insufficient data exists for a valid output).

lb := ta.SmaLookback(3) // returns 2
// The first 2 values of Sma(..., 3, nil) will be NaN.

Use lookback functions to sub-slice into valid data:

result := ta.Sma(prices, 20, nil)
lb := ta.SmaLookback(20)
validResult := result[lb:] // only valid (non-NaN) values

Platform support

Requires CGO. Tested on macOS, Linux, and Windows 11 (MSYS2/GCC).

Windows setup (MSYS2)

Download and install MSYS2.

From the MSYS2 terminal, install GCC and Go:

pacman -S mingw-w64-x86_64-gcc mingw-w64-x86_64-go

Use your project as normal — go build and go test work out of the box.

Or feel free to try using other C compilers, untested but might work just fine.

Rationale

Existing Go TA-Lib approaches have significant trade-offs:

Pure-Go reimplementations diverge from the reference C implementation and require ongoing maintenance to stay in sync. Any upstream bug fix or edge-case change must be manually ported.
System-library wrappers require TA-Lib to be pre-installed (apt install, brew install, etc.), complicating builds, CI, and distribution — especially across macOS and Linux.

This library takes a different approach: the TA-Lib C source is embedded directly as an amalgamation file (talib_amalgamation.c), committed to the repository. CGO compiles it as part of the normal go build. Algorithm correctness is guaranteed by the upstream C implementation, and you get a single go get with no external dependencies.

The API is designed for high-frequency and batch processing workloads. Callers control output allocation via the outBuf parameter pattern — buffers can be reused across calls to eliminate allocations in tight loops.

Tests

A sensible set of tests are included, some of them generated. The objective with the test suite is to provide some decent coverage that provides some proof this thing actually works, while not introducing a significant maintenance burden of trying to exhaustively prove what TA-Lib already implements and handles.

Maintenance - Updating TA-Lib

If you wish to do work on this wrapper library or update it, you can:

Edit the version tag in the //go:generate directive in talib.go as needed.
Run go generate from the repository root.
Run go test -v -count=1 ./... to make sure it's all working
Commit include/, talib_amalgamation.c, and *_gen.go files.

The go generate step requires additional tooling including CMake and uv. It will download the TA-Lib source and (re)generate the various function wrappers and test code. Python (handled via uv) is used to generate sample outputs using it's own TA-Lib bindings which we then verify in Go tests.

Note that it's always possible some structural change in a new TA-Lib version will require the generator code to be updated. YMMV.

Versioning

This module uses its own semver sequence independent of TA-Lib's version numbering. The embedded TA-Lib version is available at runtime via the TALibVersion constant and is the single source of truth in the //go:generate directive in talib.go. (The reasoning: mirroring TA-Lib versions (e.g. v0.6.4) leaves no room for Go-side fixes without inventing non-standard version suffixes.)

To release a new version:

Edit the version in the //go:generate line in talib.go:
```
//go:generate go run ./cmd/gen v0.7.0
```
Run codegen and tests:
```
go generate
go test -v -count=1 ./...
```
Commit all regenerated files (include/, talib_amalgamation.c, *_gen.go).

Tag a new minor version noting the TA-Lib bump:

git tag -a v0.2.0 -m "Update to TA-Lib v0.7.0"
git push origin v0.2.0

Repository structure

ta-lib-cgo
│
│   # Hand-written, committed once
├── talib.go                  CGO directives, init(), buffer/pointer helpers
├── errors.go                 TALibError type, retCodeMessage()
│
│   # Generated by cmd/gen — committed, do not edit by hand
├── talib_amalgamation.c      All TA-Lib .c files concatenated into one
├── errors_gen.go             retCodeMessages map (from ta_retcode.csv)
├── functions_gen.go          Go wrapper for every TA-Lib indicator
├── lookback_gen.go           XxxLookback() companion for every indicator
├── version_gen.go            TALibVersion constant
│
│   # Test files
├── talib_test.go             Shape/invariant/behavior tests (no fixtures needed)
├── golden_test.go            Fixture-based tests; skips if testdata/ missing
│
│   # Committed headers (populated by cmd/gen)
├── include/
│   ├── ta_libc.h             Public TA-Lib headers
│   ├── ta_func.h
│   ├── ta_common.h
│   ├── ta_defs.h
│   ├── ta_abstract.h
│   ├── ta_config.h           Generated by cmake during go generate
│   └── *.h                   Internal headers copied from src/ subdirectories
│
│   # Committed test fixtures (generated by scripts/gen_fixtures.py)
├── testdata/
│   ├── input.csv             Synthetic OHLCV input (200 bars, fixed seed)
│   └── expected/
│       ├── sma_10.csv        Expected outputs from Python ta-lib reference
│       ├── macd_12_26_9.csv
│       └── atr_14.csv
│
│   # Code generation tool
└── cmd/
    └── gen/
        └── main.go           Clones TA-Lib, runs cmake, builds amalgamation,
                              generates *_gen.go files; invoked via go generate

    # Python fixture generator and benchmarks (require uv)
└── scripts/
    ├── gen_fixtures.py       Generates testdata/ using Python ta-lib as an
    │                         independent reference; invoked via go generate
    └── bench.py              Python benchmark counterpart for perf comparison

Performance

Since both this library and Python's ta-lib package wrap the same C code, per-call performance should be equivalent. This was verified on Apple M1 Max with SMA, MACD, and ATR at 1k and 100k bars — Go with buffer reuse and Python were within noise of each other at every size. At 100k bars both are purely measuring the C library.

To reproduce:

# Go
go test -bench=. -benchmem -benchtime=3s -run='^$'

# Python (requires uv)
uv run ./scripts/bench.py

Documentation ¶

Index ¶

Constants
func Accbands(high []float64, low []float64, closePrice []float64, timePeriod int, ...) (outRealUpperBand []float64, outRealMiddleBand []float64, ...)
func AccbandsLookback(timePeriod int) int
func Acos(in []float64, realBuf []float64) (outReal []float64)
func AcosLookback() int
func Ad(high []float64, low []float64, closePrice []float64, volume []float64, ...) (outReal []float64)
func AdLookback() int
func Add(in0 []float64, in1 []float64, realBuf []float64) (outReal []float64)
func AddLookback() int
func Adosc(high []float64, low []float64, closePrice []float64, volume []float64, ...) (outReal []float64)
func AdoscLookback(fastPeriod int, slowPeriod int) int
func Adx(high []float64, low []float64, closePrice []float64, timePeriod int, ...) (outReal []float64)
func AdxLookback(timePeriod int) int
func Adxr(high []float64, low []float64, closePrice []float64, timePeriod int, ...) (outReal []float64)
func AdxrLookback(timePeriod int) int
func Apo(in []float64, fastPeriod int, slowPeriod int, mAType int, realBuf []float64) (outReal []float64)
func ApoLookback(fastPeriod int, slowPeriod int, mAType int) int
func Aroon(high []float64, low []float64, timePeriod int, aroonDownBuf []float64, ...) (outAroonDown []float64, outAroonUp []float64)
func AroonLookback(timePeriod int) int
func Aroonosc(high []float64, low []float64, timePeriod int, realBuf []float64) (outReal []float64)
func AroonoscLookback(timePeriod int) int
func Asin(in []float64, realBuf []float64) (outReal []float64)
func AsinLookback() int
func Atan(in []float64, realBuf []float64) (outReal []float64)
func AtanLookback() int
func Atr(high []float64, low []float64, closePrice []float64, timePeriod int, ...) (outReal []float64)
func AtrLookback(timePeriod int) int
func Avgdev(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func AvgdevLookback(timePeriod int) int
func Avgprice(open []float64, high []float64, low []float64, closePrice []float64, ...) (outReal []float64)
func AvgpriceLookback() int
func Bbands(in []float64, timePeriod int, nbDevUp float64, nbDevDn float64, mAType int, ...) (outRealUpperBand []float64, outRealMiddleBand []float64, ...)
func BbandsLookback(timePeriod int, nbDevUp float64, nbDevDn float64, mAType int) int
func Beta(in0 []float64, in1 []float64, timePeriod int, realBuf []float64) (outReal []float64)
func BetaLookback(timePeriod int) int
func Bop(open []float64, high []float64, low []float64, closePrice []float64, ...) (outReal []float64)
func BopLookback() int
func Cci(high []float64, low []float64, closePrice []float64, timePeriod int, ...) (outReal []float64)
func CciLookback(timePeriod int) int
func Cdl2crows(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func Cdl2crowsLookback() int
func Cdl3blackcrows(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func Cdl3blackcrowsLookback() int
func Cdl3inside(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func Cdl3insideLookback() int
func Cdl3linestrike(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func Cdl3linestrikeLookback() int
func Cdl3outside(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func Cdl3outsideLookback() int
func Cdl3starsinsouth(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func Cdl3starsinsouthLookback() int
func Cdl3whitesoldiers(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func Cdl3whitesoldiersLookback() int
func Cdlabandonedbaby(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlabandonedbabyLookback(penetration float64) int
func Cdladvanceblock(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdladvanceblockLookback() int
func Cdlbelthold(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlbeltholdLookback() int
func Cdlbreakaway(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlbreakawayLookback() int
func Cdlclosingmarubozu(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlclosingmarubozuLookback() int
func Cdlconcealbabyswall(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlconcealbabyswallLookback() int
func Cdlcounterattack(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlcounterattackLookback() int
func Cdldarkcloudcover(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdldarkcloudcoverLookback(penetration float64) int
func Cdldoji(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdldojiLookback() int
func Cdldojistar(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdldojistarLookback() int
func Cdldragonflydoji(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdldragonflydojiLookback() int
func Cdlengulfing(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlengulfingLookback() int
func Cdleveningdojistar(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdleveningdojistarLookback(penetration float64) int
func Cdleveningstar(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdleveningstarLookback(penetration float64) int
func Cdlgapsidesidewhite(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlgapsidesidewhiteLookback() int
func Cdlgravestonedoji(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlgravestonedojiLookback() int
func Cdlhammer(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlhammerLookback() int
func Cdlhangingman(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlhangingmanLookback() int
func Cdlharami(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlharamiLookback() int
func Cdlharamicross(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlharamicrossLookback() int
func Cdlhighwave(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlhighwaveLookback() int
func Cdlhikkake(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlhikkakeLookback() int
func Cdlhikkakemod(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlhikkakemodLookback() int
func Cdlhomingpigeon(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlhomingpigeonLookback() int
func Cdlidentical3crows(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func Cdlidentical3crowsLookback() int
func Cdlinneck(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlinneckLookback() int
func Cdlinvertedhammer(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlinvertedhammerLookback() int
func Cdlkicking(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlkickingLookback() int
func Cdlkickingbylength(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlkickingbylengthLookback() int
func Cdlladderbottom(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlladderbottomLookback() int
func Cdllongleggeddoji(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdllongleggeddojiLookback() int
func Cdllongline(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdllonglineLookback() int
func Cdlmarubozu(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlmarubozuLookback() int
func Cdlmatchinglow(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlmatchinglowLookback() int
func Cdlmathold(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlmatholdLookback(penetration float64) int
func Cdlmorningdojistar(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlmorningdojistarLookback(penetration float64) int
func Cdlmorningstar(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlmorningstarLookback(penetration float64) int
func Cdlonneck(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlonneckLookback() int
func Cdlpiercing(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlpiercingLookback() int
func Cdlrickshawman(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlrickshawmanLookback() int
func Cdlrisefall3methods(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func Cdlrisefall3methodsLookback() int
func Cdlseparatinglines(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlseparatinglinesLookback() int
func Cdlshootingstar(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlshootingstarLookback() int
func Cdlshortline(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlshortlineLookback() int
func Cdlspinningtop(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlspinningtopLookback() int
func Cdlstalledpattern(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlstalledpatternLookback() int
func Cdlsticksandwich(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlsticksandwichLookback() int
func Cdltakuri(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdltakuriLookback() int
func Cdltasukigap(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdltasukigapLookback() int
func Cdlthrusting(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdlthrustingLookback() int
func Cdltristar(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func CdltristarLookback() int
func Cdlunique3river(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func Cdlunique3riverLookback() int
func Cdlupsidegap2crows(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func Cdlupsidegap2crowsLookback() int
func Cdlxsidegap3methods(open []float64, high []float64, low []float64, closePrice []float64, ...) (outInteger []int32)
func Cdlxsidegap3methodsLookback() int
func Ceil(in []float64, realBuf []float64) (outReal []float64)
func CeilLookback() int
func Cmo(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func CmoLookback(timePeriod int) int
func Correl(in0 []float64, in1 []float64, timePeriod int, realBuf []float64) (outReal []float64)
func CorrelLookback(timePeriod int) int
func Cos(in []float64, realBuf []float64) (outReal []float64)
func CosLookback() int
func Cosh(in []float64, realBuf []float64) (outReal []float64)
func CoshLookback() int
func Dema(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func DemaLookback(timePeriod int) int
func Div(in0 []float64, in1 []float64, realBuf []float64) (outReal []float64)
func DivLookback() int
func Dx(high []float64, low []float64, closePrice []float64, timePeriod int, ...) (outReal []float64)
func DxLookback(timePeriod int) int
func Ema(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func EmaLookback(timePeriod int) int
func Exp(in []float64, realBuf []float64) (outReal []float64)
func ExpLookback() int
func Floor(in []float64, realBuf []float64) (outReal []float64)
func FloorLookback() int
func HtDcperiod(in []float64, realBuf []float64) (outReal []float64)
func HtDcperiodLookback() int
func HtDcphase(in []float64, realBuf []float64) (outReal []float64)
func HtDcphaseLookback() int
func HtPhasor(in []float64, inPhaseBuf []float64, quadratureBuf []float64) (outInPhase []float64, outQuadrature []float64)
func HtPhasorLookback() int
func HtSine(in []float64, sineBuf []float64, leadSineBuf []float64) (outSine []float64, outLeadSine []float64)
func HtSineLookback() int
func HtTrendline(in []float64, realBuf []float64) (outReal []float64)
func HtTrendlineLookback() int
func HtTrendmode(in []float64, integerBuf []int32) (outInteger []int32)
func HtTrendmodeLookback() int
func Imi(open []float64, closePrice []float64, timePeriod int, realBuf []float64) (outReal []float64)
func ImiLookback(timePeriod int) int
func Kama(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func KamaLookback(timePeriod int) int
func Linearreg(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func LinearregAngle(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func LinearregAngleLookback(timePeriod int) int
func LinearregIntercept(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func LinearregInterceptLookback(timePeriod int) int
func LinearregLookback(timePeriod int) int
func LinearregSlope(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func LinearregSlopeLookback(timePeriod int) int
func Ln(in []float64, realBuf []float64) (outReal []float64)
func LnLookback() int
func Log10(in []float64, realBuf []float64) (outReal []float64)
func Log10Lookback() int
func Ma(in []float64, timePeriod int, mAType int, realBuf []float64) (outReal []float64)
func MaLookback(timePeriod int, mAType int) int
func Macd(in []float64, fastPeriod int, slowPeriod int, signalPeriod int, ...) (outMACD []float64, outMACDSignal []float64, outMACDHist []float64)
func MacdLookback(fastPeriod int, slowPeriod int, signalPeriod int) int
func Macdext(in []float64, fastPeriod int, fastMAType int, slowPeriod int, slowMAType int, ...) (outMACD []float64, outMACDSignal []float64, outMACDHist []float64)
func MacdextLookback(fastPeriod int, fastMAType int, slowPeriod int, slowMAType int, ...) int
func Macdfix(in []float64, signalPeriod int, macdBuf []float64, macdSignalBuf []float64, ...) (outMACD []float64, outMACDSignal []float64, outMACDHist []float64)
func MacdfixLookback(signalPeriod int) int
func Mama(in []float64, fastLimit float64, slowLimit float64, mamaBuf []float64, ...) (outMAMA []float64, outFAMA []float64)
func MamaLookback(fastLimit float64, slowLimit float64) int
func Mavp(in []float64, periods []float64, minPeriod int, maxPeriod int, mAType int, ...) (outReal []float64)
func MavpLookback(minPeriod int, maxPeriod int, mAType int) int
func Max(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func MaxLookback(timePeriod int) int
func Maxindex(in []float64, timePeriod int, integerBuf []int32) (outInteger []int32)
func MaxindexLookback(timePeriod int) int
func Medprice(high []float64, low []float64, realBuf []float64) (outReal []float64)
func MedpriceLookback() int
func Mfi(high []float64, low []float64, closePrice []float64, volume []float64, ...) (outReal []float64)
func MfiLookback(timePeriod int) int
func Midpoint(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func MidpointLookback(timePeriod int) int
func Midprice(high []float64, low []float64, timePeriod int, realBuf []float64) (outReal []float64)
func MidpriceLookback(timePeriod int) int
func Min(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func MinLookback(timePeriod int) int
func Minindex(in []float64, timePeriod int, integerBuf []int32) (outInteger []int32)
func MinindexLookback(timePeriod int) int
func Minmax(in []float64, timePeriod int, minBuf []float64, maxBuf []float64) (outMin []float64, outMax []float64)
func MinmaxLookback(timePeriod int) int
func Minmaxindex(in []float64, timePeriod int, minIdxBuf []int32, maxIdxBuf []int32) (outMinIdx []int32, outMaxIdx []int32)
func MinmaxindexLookback(timePeriod int) int
func MinusDi(high []float64, low []float64, closePrice []float64, timePeriod int, ...) (outReal []float64)
func MinusDiLookback(timePeriod int) int
func MinusDm(high []float64, low []float64, timePeriod int, realBuf []float64) (outReal []float64)
func MinusDmLookback(timePeriod int) int
func Mom(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func MomLookback(timePeriod int) int
func Mult(in0 []float64, in1 []float64, realBuf []float64) (outReal []float64)
func MultLookback() int
func Natr(high []float64, low []float64, closePrice []float64, timePeriod int, ...) (outReal []float64)
func NatrLookback(timePeriod int) int
func Obv(in []float64, volume []float64, realBuf []float64) (outReal []float64)
func ObvLookback() int
func PlusDi(high []float64, low []float64, closePrice []float64, timePeriod int, ...) (outReal []float64)
func PlusDiLookback(timePeriod int) int
func PlusDm(high []float64, low []float64, timePeriod int, realBuf []float64) (outReal []float64)
func PlusDmLookback(timePeriod int) int
func Ppo(in []float64, fastPeriod int, slowPeriod int, mAType int, realBuf []float64) (outReal []float64)
func PpoLookback(fastPeriod int, slowPeriod int, mAType int) int
func Roc(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func RocLookback(timePeriod int) int
func Rocp(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func RocpLookback(timePeriod int) int
func Rocr(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func Rocr100(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func Rocr100Lookback(timePeriod int) int
func RocrLookback(timePeriod int) int
func Rsi(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func RsiLookback(timePeriod int) int
func Sar(high []float64, low []float64, acceleration float64, maximum float64, ...) (outReal []float64)
func SarLookback(acceleration float64, maximum float64) int
func Sarext(high []float64, low []float64, startValue float64, offsetOnReverse float64, ...) (outReal []float64)
func SarextLookback(startValue float64, offsetOnReverse float64, accelerationInitLong float64, ...) int
func Sin(in []float64, realBuf []float64) (outReal []float64)
func SinLookback() int
func Sinh(in []float64, realBuf []float64) (outReal []float64)
func SinhLookback() int
func Sma(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func SmaLookback(timePeriod int) int
func Sqrt(in []float64, realBuf []float64) (outReal []float64)
func SqrtLookback() int
func Stddev(in []float64, timePeriod int, nbDev float64, realBuf []float64) (outReal []float64)
func StddevLookback(timePeriod int, nbDev float64) int
func Stoch(high []float64, low []float64, closePrice []float64, fastK_Period int, ...) (outSlowK []float64, outSlowD []float64)
func StochLookback(fastK_Period int, slowK_Period int, slowK_MAType int, slowD_Period int, ...) int
func Stochf(high []float64, low []float64, closePrice []float64, fastK_Period int, ...) (outFastK []float64, outFastD []float64)
func StochfLookback(fastK_Period int, fastD_Period int, fastD_MAType int) int
func Stochrsi(in []float64, timePeriod int, fastK_Period int, fastD_Period int, ...) (outFastK []float64, outFastD []float64)
func StochrsiLookback(timePeriod int, fastK_Period int, fastD_Period int, fastD_MAType int) int
func Sub(in0 []float64, in1 []float64, realBuf []float64) (outReal []float64)
func SubLookback() int
func Sum(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func SumLookback(timePeriod int) int
func T3(in []float64, timePeriod int, vFactor float64, realBuf []float64) (outReal []float64)
func T3Lookback(timePeriod int, vFactor float64) int
func Tan(in []float64, realBuf []float64) (outReal []float64)
func TanLookback() int
func Tanh(in []float64, realBuf []float64) (outReal []float64)
func TanhLookback() int
func Tema(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func TemaLookback(timePeriod int) int
func Trange(high []float64, low []float64, closePrice []float64, realBuf []float64) (outReal []float64)
func TrangeLookback() int
func Trima(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func TrimaLookback(timePeriod int) int
func Trix(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func TrixLookback(timePeriod int) int
func Tsf(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func TsfLookback(timePeriod int) int
func Typprice(high []float64, low []float64, closePrice []float64, realBuf []float64) (outReal []float64)
func TyppriceLookback() int
func Ultosc(high []float64, low []float64, closePrice []float64, timePeriod1 int, ...) (outReal []float64)
func UltoscLookback(timePeriod1 int, timePeriod2 int, timePeriod3 int) int
func Var(in []float64, timePeriod int, nbDev float64, realBuf []float64) (outReal []float64)
func VarLookback(timePeriod int, nbDev float64) int
func Wclprice(high []float64, low []float64, closePrice []float64, realBuf []float64) (outReal []float64)
func WclpriceLookback() int
func Willr(high []float64, low []float64, closePrice []float64, timePeriod int, ...) (outReal []float64)
func WillrLookback(timePeriod int) int
func Wma(in []float64, timePeriod int, realBuf []float64) (outReal []float64)
func WmaLookback(timePeriod int) int
type TALibError
- func (e *TALibError) Error() string

Constants ¶

View Source

const TALibVersion = "0.6.4"

TALibVersion is the version of the TA-Lib C library embedded in this module.

Variables ¶

This section is empty.

Functions ¶

func Accbands ¶

func Accbands(high []float64, low []float64, closePrice []float64, timePeriod int, upperBandBuf []float64, middleBandBuf []float64, lowerBandBuf []float64) (outRealUpperBand []float64, outRealMiddleBand []float64, outRealLowerBand []float64)

Accbands - Acceleration Bands

Input = High, Low, Close

Output = double, double, double

Parameters:

timePeriod (2 to 100000): Number of period

func AccbandsLookback ¶

func AccbandsLookback(timePeriod int) int

AccbandsLookback returns the number of input values consumed before the first valid output.

func Acos ¶

func Acos(in []float64, realBuf []float64) (outReal []float64)

Acos - Vector Trigonometric ACos

Input = double

Output = double

func AcosLookback ¶

func AcosLookback() int

AcosLookback returns the number of input values consumed before the first valid output.

func Ad ¶

func Ad(high []float64, low []float64, closePrice []float64, volume []float64, realBuf []float64) (outReal []float64)

Ad - Chaikin A/D Line

Input = High, Low, Close, Volume

Output = double

func AdLookback ¶

func AdLookback() int

AdLookback returns the number of input values consumed before the first valid output.

func Add ¶

func Add(in0 []float64, in1 []float64, realBuf []float64) (outReal []float64)

Add - Vector Arithmetic Add

Input = double, double

Output = double

func AddLookback ¶

func AddLookback() int

AddLookback returns the number of input values consumed before the first valid output.

func Adosc ¶

func Adosc(high []float64, low []float64, closePrice []float64, volume []float64, fastPeriod int, slowPeriod int, realBuf []float64) (outReal []float64)

Adosc - Chaikin A/D Oscillator

Input = High, Low, Close, Volume

Output = double

Parameters:

fastPeriod (2 to 100000): Number of period for the fast MA
slowPeriod (2 to 100000): Number of period for the slow MA

func AdoscLookback ¶

func AdoscLookback(fastPeriod int, slowPeriod int) int

AdoscLookback returns the number of input values consumed before the first valid output.

func Adx ¶

func Adx(high []float64, low []float64, closePrice []float64, timePeriod int, realBuf []float64) (outReal []float64)

Adx - Average Directional Movement Index

Input = High, Low, Close

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func AdxLookback ¶

func AdxLookback(timePeriod int) int

AdxLookback returns the number of input values consumed before the first valid output.

func Adxr ¶

func Adxr(high []float64, low []float64, closePrice []float64, timePeriod int, realBuf []float64) (outReal []float64)

Adxr - Average Directional Movement Index Rating

Input = High, Low, Close

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func AdxrLookback ¶

func AdxrLookback(timePeriod int) int

AdxrLookback returns the number of input values consumed before the first valid output.

func Apo ¶

func Apo(in []float64, fastPeriod int, slowPeriod int, mAType int, realBuf []float64) (outReal []float64)

Apo - Absolute Price Oscillator

Input = double

Output = double

Parameters:

fastPeriod (2 to 100000): Number of period for the fast MA
slowPeriod (2 to 100000): Number of period for the slow MA
mAType: Type of Moving Average

func ApoLookback ¶

func ApoLookback(fastPeriod int, slowPeriod int, mAType int) int

ApoLookback returns the number of input values consumed before the first valid output.

func Aroon ¶

func Aroon(high []float64, low []float64, timePeriod int, aroonDownBuf []float64, aroonUpBuf []float64) (outAroonDown []float64, outAroonUp []float64)

Aroon - Aroon

Input = High, Low

Output = double, double

Parameters:

timePeriod (2 to 100000): Number of period

func AroonLookback ¶

func AroonLookback(timePeriod int) int

AroonLookback returns the number of input values consumed before the first valid output.

func Aroonosc ¶

func Aroonosc(high []float64, low []float64, timePeriod int, realBuf []float64) (outReal []float64)

Aroonosc - Aroon Oscillator

Input = High, Low

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func AroonoscLookback ¶

func AroonoscLookback(timePeriod int) int

AroonoscLookback returns the number of input values consumed before the first valid output.

func Asin ¶

func Asin(in []float64, realBuf []float64) (outReal []float64)

Asin - Vector Trigonometric ASin

Input = double

Output = double

func AsinLookback ¶

func AsinLookback() int

AsinLookback returns the number of input values consumed before the first valid output.

func Atan ¶

func Atan(in []float64, realBuf []float64) (outReal []float64)

Atan - Vector Trigonometric ATan

Input = double

Output = double

func AtanLookback ¶

func AtanLookback() int

AtanLookback returns the number of input values consumed before the first valid output.

func Atr ¶

func Atr(high []float64, low []float64, closePrice []float64, timePeriod int, realBuf []float64) (outReal []float64)

Atr - Average True Range

Input = High, Low, Close

Output = double

Parameters:

timePeriod (1 to 100000): Number of period

func AtrLookback ¶

func AtrLookback(timePeriod int) int

AtrLookback returns the number of input values consumed before the first valid output.

func Avgdev ¶

func Avgdev(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Avgdev - Average Deviation

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func AvgdevLookback ¶

func AvgdevLookback(timePeriod int) int

AvgdevLookback returns the number of input values consumed before the first valid output.

func Avgprice ¶

func Avgprice(open []float64, high []float64, low []float64, closePrice []float64, realBuf []float64) (outReal []float64)

Avgprice - Average Price

Input = Open, High, Low, Close

Output = double

func AvgpriceLookback ¶

func AvgpriceLookback() int

AvgpriceLookback returns the number of input values consumed before the first valid output.

func Bbands ¶

func Bbands(in []float64, timePeriod int, nbDevUp float64, nbDevDn float64, mAType int, upperBandBuf []float64, middleBandBuf []float64, lowerBandBuf []float64) (outRealUpperBand []float64, outRealMiddleBand []float64, outRealLowerBand []float64)

Bbands - Bollinger Bands

Input = double

Output = double, double, double

Parameters:

timePeriod (2 to 100000): Number of period
nbDevUp (TA_REAL_MIN to TA_REAL_MAX): Deviation multiplier for upper band
nbDevDn (TA_REAL_MIN to TA_REAL_MAX): Deviation multiplier for lower band
mAType: Type of Moving Average

func BbandsLookback ¶

func BbandsLookback(timePeriod int, nbDevUp float64, nbDevDn float64, mAType int) int

BbandsLookback returns the number of input values consumed before the first valid output.

func Beta ¶

func Beta(in0 []float64, in1 []float64, timePeriod int, realBuf []float64) (outReal []float64)

Beta - Beta

Input = double, double

Output = double

Parameters:

timePeriod (1 to 100000): Number of period

func BetaLookback ¶

func BetaLookback(timePeriod int) int

BetaLookback returns the number of input values consumed before the first valid output.

func Bop ¶

func Bop(open []float64, high []float64, low []float64, closePrice []float64, realBuf []float64) (outReal []float64)

Bop - Balance Of Power

Input = Open, High, Low, Close

Output = double

func BopLookback ¶

func BopLookback() int

BopLookback returns the number of input values consumed before the first valid output.

func Cci ¶

func Cci(high []float64, low []float64, closePrice []float64, timePeriod int, realBuf []float64) (outReal []float64)

Cci - Commodity Channel Index

Input = High, Low, Close

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func CciLookback ¶

func CciLookback(timePeriod int) int

CciLookback returns the number of input values consumed before the first valid output.

func Cdl2crows ¶

func Cdl2crows(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdl2crows - Two Crows

Input = Open, High, Low, Close

Output = int

func Cdl2crowsLookback ¶

func Cdl2crowsLookback() int

Cdl2crowsLookback returns the number of input values consumed before the first valid output.

func Cdl3blackcrows ¶

func Cdl3blackcrows(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdl3blackcrows - Three Black Crows

Input = Open, High, Low, Close

Output = int

func Cdl3blackcrowsLookback ¶

func Cdl3blackcrowsLookback() int

Cdl3blackcrowsLookback returns the number of input values consumed before the first valid output.

func Cdl3inside ¶

func Cdl3inside(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdl3inside - Three Inside Up/Down

Input = Open, High, Low, Close

Output = int

func Cdl3insideLookback ¶

func Cdl3insideLookback() int

Cdl3insideLookback returns the number of input values consumed before the first valid output.

func Cdl3linestrike ¶

func Cdl3linestrike(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdl3linestrike - Three-Line Strike

Input = Open, High, Low, Close

Output = int

func Cdl3linestrikeLookback ¶

func Cdl3linestrikeLookback() int

Cdl3linestrikeLookback returns the number of input values consumed before the first valid output.

func Cdl3outside ¶

func Cdl3outside(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdl3outside - Three Outside Up/Down

Input = Open, High, Low, Close

Output = int

func Cdl3outsideLookback ¶

func Cdl3outsideLookback() int

Cdl3outsideLookback returns the number of input values consumed before the first valid output.

func Cdl3starsinsouth ¶

func Cdl3starsinsouth(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdl3starsinsouth - Three Stars In The South

Input = Open, High, Low, Close

Output = int

func Cdl3starsinsouthLookback ¶

func Cdl3starsinsouthLookback() int

Cdl3starsinsouthLookback returns the number of input values consumed before the first valid output.

func Cdl3whitesoldiers ¶

func Cdl3whitesoldiers(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdl3whitesoldiers - Three Advancing White Soldiers

Input = Open, High, Low, Close

Output = int

func Cdl3whitesoldiersLookback ¶

func Cdl3whitesoldiersLookback() int

Cdl3whitesoldiersLookback returns the number of input values consumed before the first valid output.

func Cdlabandonedbaby ¶

func Cdlabandonedbaby(open []float64, high []float64, low []float64, closePrice []float64, penetration float64, integerBuf []int32) (outInteger []int32)

Cdlabandonedbaby - Abandoned Baby

Input = Open, High, Low, Close

Output = int

Parameters:

penetration (0 to TA_REAL_MAX): Percentage of penetration of a candle within another candle

func CdlabandonedbabyLookback ¶

func CdlabandonedbabyLookback(penetration float64) int

CdlabandonedbabyLookback returns the number of input values consumed before the first valid output.

func Cdladvanceblock ¶

func Cdladvanceblock(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdladvanceblock - Advance Block

Input = Open, High, Low, Close

Output = int

func CdladvanceblockLookback ¶

func CdladvanceblockLookback() int

CdladvanceblockLookback returns the number of input values consumed before the first valid output.

func Cdlbelthold ¶

func Cdlbelthold(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlbelthold - Belt-hold

Input = Open, High, Low, Close

Output = int

func CdlbeltholdLookback ¶

func CdlbeltholdLookback() int

CdlbeltholdLookback returns the number of input values consumed before the first valid output.

func Cdlbreakaway ¶

func Cdlbreakaway(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlbreakaway - Breakaway

Input = Open, High, Low, Close

Output = int

func CdlbreakawayLookback ¶

func CdlbreakawayLookback() int

CdlbreakawayLookback returns the number of input values consumed before the first valid output.

func Cdlclosingmarubozu ¶

func Cdlclosingmarubozu(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlclosingmarubozu - Closing Marubozu

Input = Open, High, Low, Close

Output = int

func CdlclosingmarubozuLookback ¶

func CdlclosingmarubozuLookback() int

CdlclosingmarubozuLookback returns the number of input values consumed before the first valid output.

func Cdlconcealbabyswall ¶

func Cdlconcealbabyswall(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlconcealbabyswall - Concealing Baby Swallow

Input = Open, High, Low, Close

Output = int

func CdlconcealbabyswallLookback ¶

func CdlconcealbabyswallLookback() int

CdlconcealbabyswallLookback returns the number of input values consumed before the first valid output.

func Cdlcounterattack ¶

func Cdlcounterattack(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlcounterattack - Counterattack

Input = Open, High, Low, Close

Output = int

func CdlcounterattackLookback ¶

func CdlcounterattackLookback() int

CdlcounterattackLookback returns the number of input values consumed before the first valid output.

func Cdldarkcloudcover ¶

func Cdldarkcloudcover(open []float64, high []float64, low []float64, closePrice []float64, penetration float64, integerBuf []int32) (outInteger []int32)

Cdldarkcloudcover - Dark Cloud Cover

Input = Open, High, Low, Close

Output = int

Parameters:

penetration (0 to TA_REAL_MAX): Percentage of penetration of a candle within another candle

func CdldarkcloudcoverLookback ¶

func CdldarkcloudcoverLookback(penetration float64) int

CdldarkcloudcoverLookback returns the number of input values consumed before the first valid output.

func Cdldoji ¶

func Cdldoji(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdldoji - Doji

Input = Open, High, Low, Close

Output = int

func CdldojiLookback ¶

func CdldojiLookback() int

CdldojiLookback returns the number of input values consumed before the first valid output.

func Cdldojistar ¶

func Cdldojistar(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdldojistar - Doji Star

Input = Open, High, Low, Close

Output = int

func CdldojistarLookback ¶

func CdldojistarLookback() int

CdldojistarLookback returns the number of input values consumed before the first valid output.

func Cdldragonflydoji ¶

func Cdldragonflydoji(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdldragonflydoji - Dragonfly Doji

Input = Open, High, Low, Close

Output = int

func CdldragonflydojiLookback ¶

func CdldragonflydojiLookback() int

CdldragonflydojiLookback returns the number of input values consumed before the first valid output.

func Cdlengulfing ¶

func Cdlengulfing(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlengulfing - Engulfing Pattern

Input = Open, High, Low, Close

Output = int

func CdlengulfingLookback ¶

func CdlengulfingLookback() int

CdlengulfingLookback returns the number of input values consumed before the first valid output.

func Cdleveningdojistar ¶

func Cdleveningdojistar(open []float64, high []float64, low []float64, closePrice []float64, penetration float64, integerBuf []int32) (outInteger []int32)

Cdleveningdojistar - Evening Doji Star

Input = Open, High, Low, Close

Output = int

Parameters:

penetration (0 to TA_REAL_MAX): Percentage of penetration of a candle within another candle

func CdleveningdojistarLookback ¶

func CdleveningdojistarLookback(penetration float64) int

CdleveningdojistarLookback returns the number of input values consumed before the first valid output.

func Cdleveningstar ¶

func Cdleveningstar(open []float64, high []float64, low []float64, closePrice []float64, penetration float64, integerBuf []int32) (outInteger []int32)

Cdleveningstar - Evening Star

Input = Open, High, Low, Close

Output = int

Parameters:

penetration (0 to TA_REAL_MAX): Percentage of penetration of a candle within another candle

func CdleveningstarLookback ¶

func CdleveningstarLookback(penetration float64) int

CdleveningstarLookback returns the number of input values consumed before the first valid output.

func Cdlgapsidesidewhite ¶

func Cdlgapsidesidewhite(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlgapsidesidewhite - Up/Down-gap side-by-side white lines

Input = Open, High, Low, Close

Output = int

func CdlgapsidesidewhiteLookback ¶

func CdlgapsidesidewhiteLookback() int

CdlgapsidesidewhiteLookback returns the number of input values consumed before the first valid output.

func Cdlgravestonedoji ¶

func Cdlgravestonedoji(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlgravestonedoji - Gravestone Doji

Input = Open, High, Low, Close

Output = int

func CdlgravestonedojiLookback ¶

func CdlgravestonedojiLookback() int

CdlgravestonedojiLookback returns the number of input values consumed before the first valid output.

func Cdlhammer ¶

func Cdlhammer(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlhammer - Hammer

Input = Open, High, Low, Close

Output = int

func CdlhammerLookback ¶

func CdlhammerLookback() int

CdlhammerLookback returns the number of input values consumed before the first valid output.

func Cdlhangingman ¶

func Cdlhangingman(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlhangingman - Hanging Man

Input = Open, High, Low, Close

Output = int

func CdlhangingmanLookback ¶

func CdlhangingmanLookback() int

CdlhangingmanLookback returns the number of input values consumed before the first valid output.

func Cdlharami ¶

func Cdlharami(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlharami - Harami Pattern

Input = Open, High, Low, Close

Output = int

func CdlharamiLookback ¶

func CdlharamiLookback() int

CdlharamiLookback returns the number of input values consumed before the first valid output.

func Cdlharamicross ¶

func Cdlharamicross(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlharamicross - Harami Cross Pattern

Input = Open, High, Low, Close

Output = int

func CdlharamicrossLookback ¶

func CdlharamicrossLookback() int

CdlharamicrossLookback returns the number of input values consumed before the first valid output.

func Cdlhighwave ¶

func Cdlhighwave(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlhighwave - High-Wave Candle

Input = Open, High, Low, Close

Output = int

func CdlhighwaveLookback ¶

func CdlhighwaveLookback() int

CdlhighwaveLookback returns the number of input values consumed before the first valid output.

func Cdlhikkake ¶

func Cdlhikkake(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlhikkake - Hikkake Pattern

Input = Open, High, Low, Close

Output = int

func CdlhikkakeLookback ¶

func CdlhikkakeLookback() int

CdlhikkakeLookback returns the number of input values consumed before the first valid output.

func Cdlhikkakemod ¶

func Cdlhikkakemod(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlhikkakemod - Modified Hikkake Pattern

Input = Open, High, Low, Close

Output = int

func CdlhikkakemodLookback ¶

func CdlhikkakemodLookback() int

CdlhikkakemodLookback returns the number of input values consumed before the first valid output.

func Cdlhomingpigeon ¶

func Cdlhomingpigeon(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlhomingpigeon - Homing Pigeon

Input = Open, High, Low, Close

Output = int

func CdlhomingpigeonLookback ¶

func CdlhomingpigeonLookback() int

CdlhomingpigeonLookback returns the number of input values consumed before the first valid output.

func Cdlidentical3crows ¶

func Cdlidentical3crows(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlidentical3crows - Identical Three Crows

Input = Open, High, Low, Close

Output = int

func Cdlidentical3crowsLookback ¶

func Cdlidentical3crowsLookback() int

Cdlidentical3crowsLookback returns the number of input values consumed before the first valid output.

func Cdlinneck ¶

func Cdlinneck(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlinneck - In-Neck Pattern

Input = Open, High, Low, Close

Output = int

func CdlinneckLookback ¶

func CdlinneckLookback() int

CdlinneckLookback returns the number of input values consumed before the first valid output.

func Cdlinvertedhammer ¶

func Cdlinvertedhammer(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlinvertedhammer - Inverted Hammer

Input = Open, High, Low, Close

Output = int

func CdlinvertedhammerLookback ¶

func CdlinvertedhammerLookback() int

CdlinvertedhammerLookback returns the number of input values consumed before the first valid output.

func Cdlkicking ¶

func Cdlkicking(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlkicking - Kicking

Input = Open, High, Low, Close

Output = int

func CdlkickingLookback ¶

func CdlkickingLookback() int

CdlkickingLookback returns the number of input values consumed before the first valid output.

func Cdlkickingbylength ¶

func Cdlkickingbylength(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlkickingbylength - Kicking - bull/bear determined by the longer marubozu

Input = Open, High, Low, Close

Output = int

func CdlkickingbylengthLookback ¶

func CdlkickingbylengthLookback() int

CdlkickingbylengthLookback returns the number of input values consumed before the first valid output.

func Cdlladderbottom ¶

func Cdlladderbottom(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlladderbottom - Ladder Bottom

Input = Open, High, Low, Close

Output = int

func CdlladderbottomLookback ¶

func CdlladderbottomLookback() int

CdlladderbottomLookback returns the number of input values consumed before the first valid output.

func Cdllongleggeddoji ¶

func Cdllongleggeddoji(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdllongleggeddoji - Long Legged Doji

Input = Open, High, Low, Close

Output = int

func CdllongleggeddojiLookback ¶

func CdllongleggeddojiLookback() int

CdllongleggeddojiLookback returns the number of input values consumed before the first valid output.

func Cdllongline ¶

func Cdllongline(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdllongline - Long Line Candle

Input = Open, High, Low, Close

Output = int

func CdllonglineLookback ¶

func CdllonglineLookback() int

CdllonglineLookback returns the number of input values consumed before the first valid output.

func Cdlmarubozu ¶

func Cdlmarubozu(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlmarubozu - Marubozu

Input = Open, High, Low, Close

Output = int

func CdlmarubozuLookback ¶

func CdlmarubozuLookback() int

CdlmarubozuLookback returns the number of input values consumed before the first valid output.

func Cdlmatchinglow ¶

func Cdlmatchinglow(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlmatchinglow - Matching Low

Input = Open, High, Low, Close

Output = int

func CdlmatchinglowLookback ¶

func CdlmatchinglowLookback() int

CdlmatchinglowLookback returns the number of input values consumed before the first valid output.

func Cdlmathold ¶

func Cdlmathold(open []float64, high []float64, low []float64, closePrice []float64, penetration float64, integerBuf []int32) (outInteger []int32)

Cdlmathold - Mat Hold

Input = Open, High, Low, Close

Output = int

Parameters:

penetration (0 to TA_REAL_MAX): Percentage of penetration of a candle within another candle

func CdlmatholdLookback ¶

func CdlmatholdLookback(penetration float64) int

CdlmatholdLookback returns the number of input values consumed before the first valid output.

func Cdlmorningdojistar ¶

func Cdlmorningdojistar(open []float64, high []float64, low []float64, closePrice []float64, penetration float64, integerBuf []int32) (outInteger []int32)

Cdlmorningdojistar - Morning Doji Star

Input = Open, High, Low, Close

Output = int

Parameters:

penetration (0 to TA_REAL_MAX): Percentage of penetration of a candle within another candle

func CdlmorningdojistarLookback ¶

func CdlmorningdojistarLookback(penetration float64) int

CdlmorningdojistarLookback returns the number of input values consumed before the first valid output.

func Cdlmorningstar ¶

func Cdlmorningstar(open []float64, high []float64, low []float64, closePrice []float64, penetration float64, integerBuf []int32) (outInteger []int32)

Cdlmorningstar - Morning Star

Input = Open, High, Low, Close

Output = int

Parameters:

penetration (0 to TA_REAL_MAX): Percentage of penetration of a candle within another candle

func CdlmorningstarLookback ¶

func CdlmorningstarLookback(penetration float64) int

CdlmorningstarLookback returns the number of input values consumed before the first valid output.

func Cdlonneck ¶

func Cdlonneck(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlonneck - On-Neck Pattern

Input = Open, High, Low, Close

Output = int

func CdlonneckLookback ¶

func CdlonneckLookback() int

CdlonneckLookback returns the number of input values consumed before the first valid output.

func Cdlpiercing ¶

func Cdlpiercing(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlpiercing - Piercing Pattern

Input = Open, High, Low, Close

Output = int

func CdlpiercingLookback ¶

func CdlpiercingLookback() int

CdlpiercingLookback returns the number of input values consumed before the first valid output.

func Cdlrickshawman ¶

func Cdlrickshawman(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlrickshawman - Rickshaw Man

Input = Open, High, Low, Close

Output = int

func CdlrickshawmanLookback ¶

func CdlrickshawmanLookback() int

CdlrickshawmanLookback returns the number of input values consumed before the first valid output.

func Cdlrisefall3methods ¶

func Cdlrisefall3methods(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlrisefall3methods - Rising/Falling Three Methods

Input = Open, High, Low, Close

Output = int

func Cdlrisefall3methodsLookback ¶

func Cdlrisefall3methodsLookback() int

Cdlrisefall3methodsLookback returns the number of input values consumed before the first valid output.

func Cdlseparatinglines ¶

func Cdlseparatinglines(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlseparatinglines - Separating Lines

Input = Open, High, Low, Close

Output = int

func CdlseparatinglinesLookback ¶

func CdlseparatinglinesLookback() int

CdlseparatinglinesLookback returns the number of input values consumed before the first valid output.

func Cdlshootingstar ¶

func Cdlshootingstar(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlshootingstar - Shooting Star

Input = Open, High, Low, Close

Output = int

func CdlshootingstarLookback ¶

func CdlshootingstarLookback() int

CdlshootingstarLookback returns the number of input values consumed before the first valid output.

func Cdlshortline ¶

func Cdlshortline(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlshortline - Short Line Candle

Input = Open, High, Low, Close

Output = int

func CdlshortlineLookback ¶

func CdlshortlineLookback() int

CdlshortlineLookback returns the number of input values consumed before the first valid output.

func Cdlspinningtop ¶

func Cdlspinningtop(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlspinningtop - Spinning Top

Input = Open, High, Low, Close

Output = int

func CdlspinningtopLookback ¶

func CdlspinningtopLookback() int

CdlspinningtopLookback returns the number of input values consumed before the first valid output.

func Cdlstalledpattern ¶

func Cdlstalledpattern(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlstalledpattern - Stalled Pattern

Input = Open, High, Low, Close

Output = int

func CdlstalledpatternLookback ¶

func CdlstalledpatternLookback() int

CdlstalledpatternLookback returns the number of input values consumed before the first valid output.

func Cdlsticksandwich ¶

func Cdlsticksandwich(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlsticksandwich - Stick Sandwich

Input = Open, High, Low, Close

Output = int

func CdlsticksandwichLookback ¶

func CdlsticksandwichLookback() int

CdlsticksandwichLookback returns the number of input values consumed before the first valid output.

func Cdltakuri ¶

func Cdltakuri(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdltakuri - Takuri (Dragonfly Doji with very long lower shadow)

Input = Open, High, Low, Close

Output = int

func CdltakuriLookback ¶

func CdltakuriLookback() int

CdltakuriLookback returns the number of input values consumed before the first valid output.

func Cdltasukigap ¶

func Cdltasukigap(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdltasukigap - Tasuki Gap

Input = Open, High, Low, Close

Output = int

func CdltasukigapLookback ¶

func CdltasukigapLookback() int

CdltasukigapLookback returns the number of input values consumed before the first valid output.

func Cdlthrusting ¶

func Cdlthrusting(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlthrusting - Thrusting Pattern

Input = Open, High, Low, Close

Output = int

func CdlthrustingLookback ¶

func CdlthrustingLookback() int

CdlthrustingLookback returns the number of input values consumed before the first valid output.

func Cdltristar ¶

func Cdltristar(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdltristar - Tristar Pattern

Input = Open, High, Low, Close

Output = int

func CdltristarLookback ¶

func CdltristarLookback() int

CdltristarLookback returns the number of input values consumed before the first valid output.

func Cdlunique3river ¶

func Cdlunique3river(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlunique3river - Unique 3 River

Input = Open, High, Low, Close

Output = int

func Cdlunique3riverLookback ¶

func Cdlunique3riverLookback() int

Cdlunique3riverLookback returns the number of input values consumed before the first valid output.

func Cdlupsidegap2crows ¶

func Cdlupsidegap2crows(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlupsidegap2crows - Upside Gap Two Crows

Input = Open, High, Low, Close

Output = int

func Cdlupsidegap2crowsLookback ¶

func Cdlupsidegap2crowsLookback() int

Cdlupsidegap2crowsLookback returns the number of input values consumed before the first valid output.

func Cdlxsidegap3methods ¶

func Cdlxsidegap3methods(open []float64, high []float64, low []float64, closePrice []float64, integerBuf []int32) (outInteger []int32)

Cdlxsidegap3methods - Upside/Downside Gap Three Methods

Input = Open, High, Low, Close

Output = int

func Cdlxsidegap3methodsLookback ¶

func Cdlxsidegap3methodsLookback() int

Cdlxsidegap3methodsLookback returns the number of input values consumed before the first valid output.

func Ceil ¶

func Ceil(in []float64, realBuf []float64) (outReal []float64)

Ceil - Vector Ceil

Input = double

Output = double

func CeilLookback ¶

func CeilLookback() int

CeilLookback returns the number of input values consumed before the first valid output.

func Cmo ¶

func Cmo(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Cmo - Chande Momentum Oscillator

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func CmoLookback ¶

func CmoLookback(timePeriod int) int

CmoLookback returns the number of input values consumed before the first valid output.

func Correl ¶

func Correl(in0 []float64, in1 []float64, timePeriod int, realBuf []float64) (outReal []float64)

Correl - Pearson's Correlation Coefficient (r)

Input = double, double

Output = double

Parameters:

timePeriod (1 to 100000): Number of period

func CorrelLookback ¶

func CorrelLookback(timePeriod int) int

CorrelLookback returns the number of input values consumed before the first valid output.

func Cos ¶

func Cos(in []float64, realBuf []float64) (outReal []float64)

Cos - Vector Trigonometric Cos

Input = double

Output = double

func CosLookback ¶

func CosLookback() int

CosLookback returns the number of input values consumed before the first valid output.

func Cosh ¶

func Cosh(in []float64, realBuf []float64) (outReal []float64)

Cosh - Vector Trigonometric Cosh

Input = double

Output = double

func CoshLookback ¶

func CoshLookback() int

CoshLookback returns the number of input values consumed before the first valid output.

func Dema ¶

func Dema(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Dema - Double Exponential Moving Average

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func DemaLookback ¶

func DemaLookback(timePeriod int) int

DemaLookback returns the number of input values consumed before the first valid output.

func Div ¶

func Div(in0 []float64, in1 []float64, realBuf []float64) (outReal []float64)

Div - Vector Arithmetic Div

Input = double, double

Output = double

func DivLookback ¶

func DivLookback() int

DivLookback returns the number of input values consumed before the first valid output.

func Dx ¶

func Dx(high []float64, low []float64, closePrice []float64, timePeriod int, realBuf []float64) (outReal []float64)

Dx - Directional Movement Index

Input = High, Low, Close

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func DxLookback ¶

func DxLookback(timePeriod int) int

DxLookback returns the number of input values consumed before the first valid output.

func Ema ¶

func Ema(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Ema - Exponential Moving Average

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func EmaLookback ¶

func EmaLookback(timePeriod int) int

EmaLookback returns the number of input values consumed before the first valid output.

func Exp ¶

func Exp(in []float64, realBuf []float64) (outReal []float64)

Exp - Vector Arithmetic Exp

Input = double

Output = double

func ExpLookback ¶

func ExpLookback() int

ExpLookback returns the number of input values consumed before the first valid output.

func Floor ¶

func Floor(in []float64, realBuf []float64) (outReal []float64)

Floor - Vector Floor

Input = double

Output = double

func FloorLookback ¶

func FloorLookback() int

FloorLookback returns the number of input values consumed before the first valid output.

func HtDcperiod ¶

func HtDcperiod(in []float64, realBuf []float64) (outReal []float64)

HtDcperiod - Hilbert Transform - Dominant Cycle Period

Input = double

Output = double

func HtDcperiodLookback ¶

func HtDcperiodLookback() int

HtDcperiodLookback returns the number of input values consumed before the first valid output.

func HtDcphase ¶

func HtDcphase(in []float64, realBuf []float64) (outReal []float64)

HtDcphase - Hilbert Transform - Dominant Cycle Phase

Input = double

Output = double

func HtDcphaseLookback ¶

func HtDcphaseLookback() int

HtDcphaseLookback returns the number of input values consumed before the first valid output.

func HtPhasor ¶

func HtPhasor(in []float64, inPhaseBuf []float64, quadratureBuf []float64) (outInPhase []float64, outQuadrature []float64)

HtPhasor - Hilbert Transform - Phasor Components

Input = double

Output = double, double

func HtPhasorLookback ¶

func HtPhasorLookback() int

HtPhasorLookback returns the number of input values consumed before the first valid output.

func HtSine ¶

func HtSine(in []float64, sineBuf []float64, leadSineBuf []float64) (outSine []float64, outLeadSine []float64)

HtSine - Hilbert Transform - SineWave

Input = double

Output = double, double

func HtSineLookback ¶

func HtSineLookback() int

HtSineLookback returns the number of input values consumed before the first valid output.

func HtTrendline ¶

func HtTrendline(in []float64, realBuf []float64) (outReal []float64)

HtTrendline - Hilbert Transform - Instantaneous Trendline

Input = double

Output = double

func HtTrendlineLookback ¶

func HtTrendlineLookback() int

HtTrendlineLookback returns the number of input values consumed before the first valid output.

func HtTrendmode ¶

func HtTrendmode(in []float64, integerBuf []int32) (outInteger []int32)

HtTrendmode - Hilbert Transform - Trend vs Cycle Mode

Input = double

Output = int

func HtTrendmodeLookback ¶

func HtTrendmodeLookback() int

HtTrendmodeLookback returns the number of input values consumed before the first valid output.

func Imi ¶

func Imi(open []float64, closePrice []float64, timePeriod int, realBuf []float64) (outReal []float64)

Imi - Intraday Momentum Index

Input = Open, Close

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func ImiLookback ¶

func ImiLookback(timePeriod int) int

ImiLookback returns the number of input values consumed before the first valid output.

func Kama ¶

func Kama(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Kama - Kaufman Adaptive Moving Average

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func KamaLookback ¶

func KamaLookback(timePeriod int) int

KamaLookback returns the number of input values consumed before the first valid output.

func Linearreg ¶

func Linearreg(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Linearreg - Linear Regression

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func LinearregAngle ¶

func LinearregAngle(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

LinearregAngle - Linear Regression Angle

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func LinearregAngleLookback ¶

func LinearregAngleLookback(timePeriod int) int

LinearregAngleLookback returns the number of input values consumed before the first valid output.

func LinearregIntercept ¶

func LinearregIntercept(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

LinearregIntercept - Linear Regression Intercept

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func LinearregInterceptLookback ¶

func LinearregInterceptLookback(timePeriod int) int

LinearregInterceptLookback returns the number of input values consumed before the first valid output.

func LinearregLookback ¶

func LinearregLookback(timePeriod int) int

LinearregLookback returns the number of input values consumed before the first valid output.

func LinearregSlope ¶

func LinearregSlope(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

LinearregSlope - Linear Regression Slope

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func LinearregSlopeLookback ¶

func LinearregSlopeLookback(timePeriod int) int

LinearregSlopeLookback returns the number of input values consumed before the first valid output.

func Ln ¶

func Ln(in []float64, realBuf []float64) (outReal []float64)

Ln - Vector Log Natural

Input = double

Output = double

func LnLookback ¶

func LnLookback() int

LnLookback returns the number of input values consumed before the first valid output.

func Log10 ¶

func Log10(in []float64, realBuf []float64) (outReal []float64)

Log10 - Vector Log10

Input = double

Output = double

func Log10Lookback ¶

func Log10Lookback() int

Log10Lookback returns the number of input values consumed before the first valid output.

func Ma ¶

func Ma(in []float64, timePeriod int, mAType int, realBuf []float64) (outReal []float64)

Ma - Moving average

Input = double

Output = double

Parameters:

timePeriod (1 to 100000): Number of period
mAType: Type of Moving Average

func MaLookback ¶

func MaLookback(timePeriod int, mAType int) int

MaLookback returns the number of input values consumed before the first valid output.

func Macd ¶

func Macd(in []float64, fastPeriod int, slowPeriod int, signalPeriod int, macdBuf []float64, macdSignalBuf []float64, macdHistBuf []float64) (outMACD []float64, outMACDSignal []float64, outMACDHist []float64)

Macd - Moving Average Convergence/Divergence

Input = double

Output = double, double, double

Parameters:

fastPeriod (2 to 100000): Number of period for the fast MA
slowPeriod (2 to 100000): Number of period for the slow MA
signalPeriod (1 to 100000): Smoothing for the signal line (nb of period)

func MacdLookback ¶

func MacdLookback(fastPeriod int, slowPeriod int, signalPeriod int) int

MacdLookback returns the number of input values consumed before the first valid output.

func Macdext ¶

func Macdext(in []float64, fastPeriod int, fastMAType int, slowPeriod int, slowMAType int, signalPeriod int, signalMAType int, macdBuf []float64, macdSignalBuf []float64, macdHistBuf []float64) (outMACD []float64, outMACDSignal []float64, outMACDHist []float64)

Macdext - MACD with controllable MA type

Input = double

Output = double, double, double

Parameters:

fastPeriod (2 to 100000): Number of period for the fast MA
fastMAType: Type of Moving Average for fast MA
slowPeriod (2 to 100000): Number of period for the slow MA
slowMAType: Type of Moving Average for slow MA
signalPeriod (1 to 100000): Smoothing for the signal line (nb of period)
signalMAType: Type of Moving Average for signal line

func MacdextLookback ¶

func MacdextLookback(fastPeriod int, fastMAType int, slowPeriod int, slowMAType int, signalPeriod int, signalMAType int) int

MacdextLookback returns the number of input values consumed before the first valid output.

func Macdfix ¶

func Macdfix(in []float64, signalPeriod int, macdBuf []float64, macdSignalBuf []float64, macdHistBuf []float64) (outMACD []float64, outMACDSignal []float64, outMACDHist []float64)

Macdfix - Moving Average Convergence/Divergence Fix 12/26

Input = double

Output = double, double, double

Parameters:

signalPeriod (1 to 100000): Smoothing for the signal line (nb of period)

func MacdfixLookback ¶

func MacdfixLookback(signalPeriod int) int

MacdfixLookback returns the number of input values consumed before the first valid output.

func Mama ¶

func Mama(in []float64, fastLimit float64, slowLimit float64, mamaBuf []float64, famaBuf []float64) (outMAMA []float64, outFAMA []float64)

Mama - MESA Adaptive Moving Average

Input = double

Output = double, double

Parameters:

fastLimit (0.01 to 0.99): Upper limit use in the adaptive algorithm
slowLimit (0.01 to 0.99): Lower limit use in the adaptive algorithm

func MamaLookback ¶

func MamaLookback(fastLimit float64, slowLimit float64) int

MamaLookback returns the number of input values consumed before the first valid output.

func Mavp ¶

func Mavp(in []float64, periods []float64, minPeriod int, maxPeriod int, mAType int, realBuf []float64) (outReal []float64)

Mavp - Moving average with variable period

Input = double, double

Output = double

Parameters:

minPeriod (2 to 100000): Value less than minimum will be changed to Minimum period
maxPeriod (2 to 100000): Value higher than maximum will be changed to Maximum period
mAType: Type of Moving Average

func MavpLookback ¶

func MavpLookback(minPeriod int, maxPeriod int, mAType int) int

MavpLookback returns the number of input values consumed before the first valid output.

func Max ¶

func Max(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Max - Highest value over a specified period

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func MaxLookback ¶

func MaxLookback(timePeriod int) int

MaxLookback returns the number of input values consumed before the first valid output.

func Maxindex ¶

func Maxindex(in []float64, timePeriod int, integerBuf []int32) (outInteger []int32)

Maxindex - Index of highest value over a specified period

Input = double

Output = int

Parameters:

timePeriod (2 to 100000): Number of period

func MaxindexLookback ¶

func MaxindexLookback(timePeriod int) int

MaxindexLookback returns the number of input values consumed before the first valid output.

func Medprice ¶

func Medprice(high []float64, low []float64, realBuf []float64) (outReal []float64)

Medprice - Median Price

Input = High, Low

Output = double

func MedpriceLookback ¶

func MedpriceLookback() int

MedpriceLookback returns the number of input values consumed before the first valid output.

func Mfi ¶

func Mfi(high []float64, low []float64, closePrice []float64, volume []float64, timePeriod int, realBuf []float64) (outReal []float64)

Mfi - Money Flow Index

Input = High, Low, Close, Volume

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func MfiLookback ¶

func MfiLookback(timePeriod int) int

MfiLookback returns the number of input values consumed before the first valid output.

func Midpoint ¶

func Midpoint(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Midpoint - MidPoint over period

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func MidpointLookback ¶

func MidpointLookback(timePeriod int) int

MidpointLookback returns the number of input values consumed before the first valid output.

func Midprice ¶

func Midprice(high []float64, low []float64, timePeriod int, realBuf []float64) (outReal []float64)

Midprice - Midpoint Price over period

Input = High, Low

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func MidpriceLookback ¶

func MidpriceLookback(timePeriod int) int

MidpriceLookback returns the number of input values consumed before the first valid output.

func Min ¶

func Min(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Min - Lowest value over a specified period

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func MinLookback ¶

func MinLookback(timePeriod int) int

MinLookback returns the number of input values consumed before the first valid output.

func Minindex ¶

func Minindex(in []float64, timePeriod int, integerBuf []int32) (outInteger []int32)

Minindex - Index of lowest value over a specified period

Input = double

Output = int

Parameters:

timePeriod (2 to 100000): Number of period

func MinindexLookback ¶

func MinindexLookback(timePeriod int) int

MinindexLookback returns the number of input values consumed before the first valid output.

func Minmax ¶

func Minmax(in []float64, timePeriod int, minBuf []float64, maxBuf []float64) (outMin []float64, outMax []float64)

Minmax - Lowest and highest values over a specified period

Input = double

Output = double, double

Parameters:

timePeriod (2 to 100000): Number of period

func MinmaxLookback ¶

func MinmaxLookback(timePeriod int) int

MinmaxLookback returns the number of input values consumed before the first valid output.

func Minmaxindex ¶

func Minmaxindex(in []float64, timePeriod int, minIdxBuf []int32, maxIdxBuf []int32) (outMinIdx []int32, outMaxIdx []int32)

Minmaxindex - Indexes of lowest and highest values over a specified period

Input = double

Output = int, int

Parameters:

timePeriod (2 to 100000): Number of period

func MinmaxindexLookback ¶

func MinmaxindexLookback(timePeriod int) int

MinmaxindexLookback returns the number of input values consumed before the first valid output.

func MinusDi ¶

func MinusDi(high []float64, low []float64, closePrice []float64, timePeriod int, realBuf []float64) (outReal []float64)

MinusDi - Minus Directional Indicator

Input = High, Low, Close

Output = double

Parameters:

timePeriod (1 to 100000): Number of period

func MinusDiLookback ¶

func MinusDiLookback(timePeriod int) int

MinusDiLookback returns the number of input values consumed before the first valid output.

func MinusDm ¶

func MinusDm(high []float64, low []float64, timePeriod int, realBuf []float64) (outReal []float64)

MinusDm - Minus Directional Movement

Input = High, Low

Output = double

Parameters:

timePeriod (1 to 100000): Number of period

func MinusDmLookback ¶

func MinusDmLookback(timePeriod int) int

MinusDmLookback returns the number of input values consumed before the first valid output.

func Mom ¶

func Mom(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Mom - Momentum

Input = double

Output = double

Parameters:

timePeriod (1 to 100000): Number of period

func MomLookback ¶

func MomLookback(timePeriod int) int

MomLookback returns the number of input values consumed before the first valid output.

func Mult ¶

func Mult(in0 []float64, in1 []float64, realBuf []float64) (outReal []float64)

Mult - Vector Arithmetic Mult

Input = double, double

Output = double

func MultLookback ¶

func MultLookback() int

MultLookback returns the number of input values consumed before the first valid output.

func Natr ¶

func Natr(high []float64, low []float64, closePrice []float64, timePeriod int, realBuf []float64) (outReal []float64)

Natr - Normalized Average True Range

Input = High, Low, Close

Output = double

Parameters:

timePeriod (1 to 100000): Number of period

func NatrLookback ¶

func NatrLookback(timePeriod int) int

NatrLookback returns the number of input values consumed before the first valid output.

func Obv ¶

func Obv(in []float64, volume []float64, realBuf []float64) (outReal []float64)

Obv - On Balance Volume

Input = double, Volume

Output = double

func ObvLookback ¶

func ObvLookback() int

ObvLookback returns the number of input values consumed before the first valid output.

func PlusDi ¶

func PlusDi(high []float64, low []float64, closePrice []float64, timePeriod int, realBuf []float64) (outReal []float64)

PlusDi - Plus Directional Indicator

Input = High, Low, Close

Output = double

Parameters:

timePeriod (1 to 100000): Number of period

func PlusDiLookback ¶

func PlusDiLookback(timePeriod int) int

PlusDiLookback returns the number of input values consumed before the first valid output.

func PlusDm ¶

func PlusDm(high []float64, low []float64, timePeriod int, realBuf []float64) (outReal []float64)

PlusDm - Plus Directional Movement

Input = High, Low

Output = double

Parameters:

timePeriod (1 to 100000): Number of period

func PlusDmLookback ¶

func PlusDmLookback(timePeriod int) int

PlusDmLookback returns the number of input values consumed before the first valid output.

func Ppo ¶

func Ppo(in []float64, fastPeriod int, slowPeriod int, mAType int, realBuf []float64) (outReal []float64)

Ppo - Percentage Price Oscillator

Input = double

Output = double

Parameters:

fastPeriod (2 to 100000): Number of period for the fast MA
slowPeriod (2 to 100000): Number of period for the slow MA
mAType: Type of Moving Average

func PpoLookback ¶

func PpoLookback(fastPeriod int, slowPeriod int, mAType int) int

PpoLookback returns the number of input values consumed before the first valid output.

func Roc ¶

func Roc(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Roc - Rate of change : ((price/prevPrice)-1)*100

Input = double

Output = double

Parameters:

timePeriod (1 to 100000): Number of period

func RocLookback ¶

func RocLookback(timePeriod int) int

RocLookback returns the number of input values consumed before the first valid output.

func Rocp ¶

func Rocp(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Rocp - Rate of change Percentage: (price-prevPrice)/prevPrice

Input = double

Output = double

Parameters:

timePeriod (1 to 100000): Number of period

func RocpLookback ¶

func RocpLookback(timePeriod int) int

RocpLookback returns the number of input values consumed before the first valid output.

func Rocr ¶

func Rocr(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Rocr - Rate of change ratio: (price/prevPrice)

Input = double

Output = double

Parameters:

timePeriod (1 to 100000): Number of period

func Rocr100 ¶

func Rocr100(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Rocr100 - Rate of change ratio 100 scale: (price/prevPrice)*100

Input = double

Output = double

Parameters:

timePeriod (1 to 100000): Number of period

func Rocr100Lookback ¶

func Rocr100Lookback(timePeriod int) int

Rocr100Lookback returns the number of input values consumed before the first valid output.

func RocrLookback ¶

func RocrLookback(timePeriod int) int

RocrLookback returns the number of input values consumed before the first valid output.

func Rsi ¶

func Rsi(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Rsi - Relative Strength Index

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func RsiLookback ¶

func RsiLookback(timePeriod int) int

RsiLookback returns the number of input values consumed before the first valid output.

func Sar ¶

func Sar(high []float64, low []float64, acceleration float64, maximum float64, realBuf []float64) (outReal []float64)

Sar - Parabolic SAR

Input = High, Low

Output = double

Parameters:

acceleration (0 to TA_REAL_MAX): Acceleration Factor used up to the Maximum value
maximum (0 to TA_REAL_MAX): Acceleration Factor Maximum value

func SarLookback ¶

func SarLookback(acceleration float64, maximum float64) int

SarLookback returns the number of input values consumed before the first valid output.

func Sarext ¶

func Sarext(high []float64, low []float64, startValue float64, offsetOnReverse float64, accelerationInitLong float64, accelerationLong float64, accelerationMaxLong float64, accelerationInitShort float64, accelerationShort float64, accelerationMaxShort float64, realBuf []float64) (outReal []float64)

Sarext - Parabolic SAR - Extended

Input = High, Low

Output = double

Parameters:

startValue (TA_REAL_MIN to TA_REAL_MAX): Start value and direction. 0 for Auto, >0 for Long, <0 for Short
offsetOnReverse (0 to TA_REAL_MAX): Percent offset added/removed to initial stop on short/long reversal
accelerationInitLong (0 to TA_REAL_MAX): Acceleration Factor initial value for the Long direction
accelerationLong (0 to TA_REAL_MAX): Acceleration Factor for the Long direction
accelerationMaxLong (0 to TA_REAL_MAX): Acceleration Factor maximum value for the Long direction
accelerationInitShort (0 to TA_REAL_MAX): Acceleration Factor initial value for the Short direction
accelerationShort (0 to TA_REAL_MAX): Acceleration Factor for the Short direction
accelerationMaxShort (0 to TA_REAL_MAX): Acceleration Factor maximum value for the Short direction

func SarextLookback ¶

func SarextLookback(startValue float64, offsetOnReverse float64, accelerationInitLong float64, accelerationLong float64, accelerationMaxLong float64, accelerationInitShort float64, accelerationShort float64, accelerationMaxShort float64) int

SarextLookback returns the number of input values consumed before the first valid output.

func Sin ¶

func Sin(in []float64, realBuf []float64) (outReal []float64)

Sin - Vector Trigonometric Sin

Input = double

Output = double

func SinLookback ¶

func SinLookback() int

SinLookback returns the number of input values consumed before the first valid output.

func Sinh ¶

func Sinh(in []float64, realBuf []float64) (outReal []float64)

Sinh - Vector Trigonometric Sinh

Input = double

Output = double

func SinhLookback ¶

func SinhLookback() int

SinhLookback returns the number of input values consumed before the first valid output.

func Sma ¶

func Sma(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Sma - Simple Moving Average

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func SmaLookback ¶

func SmaLookback(timePeriod int) int

SmaLookback returns the number of input values consumed before the first valid output.

func Sqrt ¶

func Sqrt(in []float64, realBuf []float64) (outReal []float64)

Sqrt - Vector Square Root

Input = double

Output = double

func SqrtLookback ¶

func SqrtLookback() int

SqrtLookback returns the number of input values consumed before the first valid output.

func Stddev ¶

func Stddev(in []float64, timePeriod int, nbDev float64, realBuf []float64) (outReal []float64)

Stddev - Standard Deviation

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period
nbDev (TA_REAL_MIN to TA_REAL_MAX): Nb of deviations

func StddevLookback ¶

func StddevLookback(timePeriod int, nbDev float64) int

StddevLookback returns the number of input values consumed before the first valid output.

func Stoch ¶

func Stoch(high []float64, low []float64, closePrice []float64, fastK_Period int, slowK_Period int, slowK_MAType int, slowD_Period int, slowD_MAType int, slowKBuf []float64, slowDBuf []float64) (outSlowK []float64, outSlowD []float64)

Stoch - Stochastic

Input = High, Low, Close

Output = double, double

Parameters:

fastK_Period (1 to 100000): Time period for building the Fast-K line
slowK_Period (1 to 100000): Smoothing for making the Slow-K line. Usually set to 3
slowK_MAType: Type of Moving Average for Slow-K
slowD_Period (1 to 100000): Smoothing for making the Slow-D line
slowD_MAType: Type of Moving Average for Slow-D

func StochLookback ¶

func StochLookback(fastK_Period int, slowK_Period int, slowK_MAType int, slowD_Period int, slowD_MAType int) int

StochLookback returns the number of input values consumed before the first valid output.

func Stochf ¶

func Stochf(high []float64, low []float64, closePrice []float64, fastK_Period int, fastD_Period int, fastD_MAType int, fastKBuf []float64, fastDBuf []float64) (outFastK []float64, outFastD []float64)

Stochf - Stochastic Fast

Input = High, Low, Close

Output = double, double

Parameters:

fastK_Period (1 to 100000): Time period for building the Fast-K line
fastD_Period (1 to 100000): Smoothing for making the Fast-D line. Usually set to 3
fastD_MAType: Type of Moving Average for Fast-D

func StochfLookback ¶

func StochfLookback(fastK_Period int, fastD_Period int, fastD_MAType int) int

StochfLookback returns the number of input values consumed before the first valid output.

func Stochrsi ¶

func Stochrsi(in []float64, timePeriod int, fastK_Period int, fastD_Period int, fastD_MAType int, fastKBuf []float64, fastDBuf []float64) (outFastK []float64, outFastD []float64)

Stochrsi - Stochastic Relative Strength Index

Input = double

Output = double, double

Parameters:

timePeriod (2 to 100000): Number of period
fastK_Period (1 to 100000): Time period for building the Fast-K line
fastD_Period (1 to 100000): Smoothing for making the Fast-D line. Usually set to 3
fastD_MAType: Type of Moving Average for Fast-D

func StochrsiLookback ¶

func StochrsiLookback(timePeriod int, fastK_Period int, fastD_Period int, fastD_MAType int) int

StochrsiLookback returns the number of input values consumed before the first valid output.

func Sub ¶

func Sub(in0 []float64, in1 []float64, realBuf []float64) (outReal []float64)

Sub - Vector Arithmetic Subtraction

Input = double, double

Output = double

func SubLookback ¶

func SubLookback() int

SubLookback returns the number of input values consumed before the first valid output.

func Sum ¶

func Sum(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Sum - Summation

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func SumLookback ¶

func SumLookback(timePeriod int) int

SumLookback returns the number of input values consumed before the first valid output.

func T3 ¶

func T3(in []float64, timePeriod int, vFactor float64, realBuf []float64) (outReal []float64)

T3 - Triple Exponential Moving Average (T3)

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period
vFactor (0 to 1): Volume Factor

func T3Lookback ¶

func T3Lookback(timePeriod int, vFactor float64) int

T3Lookback returns the number of input values consumed before the first valid output.

func Tan ¶

func Tan(in []float64, realBuf []float64) (outReal []float64)

Tan - Vector Trigonometric Tan

Input = double

Output = double

func TanLookback ¶

func TanLookback() int

TanLookback returns the number of input values consumed before the first valid output.

func Tanh ¶

func Tanh(in []float64, realBuf []float64) (outReal []float64)

Tanh - Vector Trigonometric Tanh

Input = double

Output = double

func TanhLookback ¶

func TanhLookback() int

TanhLookback returns the number of input values consumed before the first valid output.

func Tema ¶

func Tema(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Tema - Triple Exponential Moving Average

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func TemaLookback ¶

func TemaLookback(timePeriod int) int

TemaLookback returns the number of input values consumed before the first valid output.

func Trange ¶

func Trange(high []float64, low []float64, closePrice []float64, realBuf []float64) (outReal []float64)

Trange - True Range

Input = High, Low, Close

Output = double

func TrangeLookback ¶

func TrangeLookback() int

TrangeLookback returns the number of input values consumed before the first valid output.

func Trima ¶

func Trima(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Trima - Triangular Moving Average

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func TrimaLookback ¶

func TrimaLookback(timePeriod int) int

TrimaLookback returns the number of input values consumed before the first valid output.

func Trix ¶

func Trix(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Trix - 1-day Rate-Of-Change (ROC) of a Triple Smooth EMA

Input = double

Output = double

Parameters:

timePeriod (1 to 100000): Number of period

func TrixLookback ¶

func TrixLookback(timePeriod int) int

TrixLookback returns the number of input values consumed before the first valid output.

func Tsf ¶

func Tsf(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Tsf - Time Series Forecast

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func TsfLookback ¶

func TsfLookback(timePeriod int) int

TsfLookback returns the number of input values consumed before the first valid output.

func Typprice ¶

func Typprice(high []float64, low []float64, closePrice []float64, realBuf []float64) (outReal []float64)

Typprice - Typical Price

Input = High, Low, Close

Output = double

func TyppriceLookback ¶

func TyppriceLookback() int

TyppriceLookback returns the number of input values consumed before the first valid output.

func Ultosc ¶

func Ultosc(high []float64, low []float64, closePrice []float64, timePeriod1 int, timePeriod2 int, timePeriod3 int, realBuf []float64) (outReal []float64)

Ultosc - Ultimate Oscillator

Input = High, Low, Close

Output = double

Parameters:

timePeriod1 (1 to 100000): Number of bars for 1st period.
timePeriod2 (1 to 100000): Number of bars fro 2nd period
timePeriod3 (1 to 100000): Number of bars for 3rd period

func UltoscLookback ¶

func UltoscLookback(timePeriod1 int, timePeriod2 int, timePeriod3 int) int

UltoscLookback returns the number of input values consumed before the first valid output.

func Var ¶

func Var(in []float64, timePeriod int, nbDev float64, realBuf []float64) (outReal []float64)

Var - Variance

Input = double

Output = double

Parameters:

timePeriod (1 to 100000): Number of period
nbDev (TA_REAL_MIN to TA_REAL_MAX): Nb of deviations

func VarLookback ¶

func VarLookback(timePeriod int, nbDev float64) int

VarLookback returns the number of input values consumed before the first valid output.

func Wclprice ¶

func Wclprice(high []float64, low []float64, closePrice []float64, realBuf []float64) (outReal []float64)

Wclprice - Weighted Close Price

Input = High, Low, Close

Output = double

func WclpriceLookback ¶

func WclpriceLookback() int

WclpriceLookback returns the number of input values consumed before the first valid output.

func Willr ¶

func Willr(high []float64, low []float64, closePrice []float64, timePeriod int, realBuf []float64) (outReal []float64)

Willr - Williams' %R

Input = High, Low, Close

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func WillrLookback ¶

func WillrLookback(timePeriod int) int

WillrLookback returns the number of input values consumed before the first valid output.

func Wma ¶

func Wma(in []float64, timePeriod int, realBuf []float64) (outReal []float64)

Wma - Weighted Moving Average

Input = double

Output = double

Parameters:

timePeriod (2 to 100000): Number of period

func WmaLookback ¶

func WmaLookback(timePeriod int) int

WmaLookback returns the number of input values consumed before the first valid output.

Types ¶

type TALibError ¶

type TALibError struct {
	RetCode int
	Message string
}

TALibError is the panic value for all TA-Lib failures. Callers can recover() and type-assert to *TALibError to inspect the code.

func (*TALibError) Error ¶

func (e *TALibError) Error() string

Source Files ¶

View all Source files

Directories ¶

Path	Synopsis
cmd
gen command cmd/gen clones the TA-Lib repository at a pinned version, builds the amalgamation C file, copies headers, and generates Go wrapper source files.	cmd/gen clones the TA-Lib repository at a pinned version, builds the amalgamation C file, copies headers, and generates Go wrapper source files.

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