utils

Documentation

Index

• type FreqDist
  • func NewFreqDist(samples map[string]int) *FreqDist
  • func (f *FreqDist) B() int
  • func (f *FreqDist) N() float64

Types

type FreqDist

type FreqDist struct {
	Samples map[string]int
}

A frequency distribution for the outcomes of an experiment. A frequency distribution records the number of times each outcome of an experiment has occurred. For example, a frequency distribution could be used to record the frequency of each word type in a document. Formally, a frequency distribution can be defined as a function mapping from each sample to the number of times that sample occurred as an outcome. Frequency distributions are generally constructed by running a number of experiments, and incrementing the count for a sample every time it is an outcome of an experiment.

func NewFreqDist

func NewFreqDist(samples map[string]int) *FreqDist

func (*FreqDist) B

func (f *FreqDist) B() int

B returns the total number of sample values (or "bins") that have counts greater than zero.

func (*FreqDist) N

func (f *FreqDist) N() float64

N returns the total number of sample outcomes that have been recorded by this FreqDist.