standardize_in_memory {plmmr}R Documentation

A helper function to standardize matrices

Description

A helper function to standardize matrices

Usage

standardize_in_memory(X)

Arguments

X

a matrix

Details

This function is adapted from https://github.com/pbreheny/ncvreg/blob/master/R/std.R NOTE: this function returns a matrix in memory. For standardizing filebacked data, use big_std() – see src/big_standardize.cpp

Value

a list with the standardized matrix, vectors with the centering/scaling values, and a vector with the indices of nonsingular columns


[Package plmmr version 4.2.1 Index]