zscore {DMTL}

Standardize matrix per column

Description

This function standardized each column of a dataframe or matrix (-alike) to have mean = 0 and sd = 1.

Usage

zscore(X)

Arguments

X

Dataframe or matrix (-alike) containing data.

Value

The standardized dataframe.

Examples

X <- matrix(rnorm(100, 0.2, 0.3), nrow = 20)
X_std <- zscore(X)
print(apply(X_std, 2, mean))
print(apply(X_std, 2, sd))