There are several packages here for operating on tensor, and table data, for computing standard statistics and performing related computations, such as normalizing the data.
stats computes standard summary statistics (mean, standard deviation, etc).
metric computes similarity / distance metrics for comparing two tensors, and associated distance / similarity matrix functions.
cluster implements agglomerative clustering of items based on metric distance / similarity matrix data.
glm fits a general linear model for one or more dependent variables as a function of one or more independent variables. This encompasses all forms of regression.
histogram bins data into groups and reports the frequency of elements in the bins.