zscore: Z-score scaling of numerical variables

In liver: "Eating the Liver of Data Science"

Z-score scaling of numerical variables

Description

Performs Z-score tranformation for numerical variables.

Usage

zscore(x, col = "auto", mean = NULL, sd = NULL, na.rm = FALSE)

Arguments

x	a numerical vector, matrix or data.frame.
col	a character vector of column names or indices. If "auto", all numeric columns will be transformed. If "all", all columns will be transformed.
mean	a numerical value or vector indicating the mean to use for Z-score calculation; if NULL, the default is the mean of x.
sd	a numerical value or vector indicating the standard deviation(s) to use for Z-score calculation; if NULL, the default is the standard deviation of x.
na.rm	a logical value indicating whether NA values in x should be stripped before the computation proceeds.

Value

transformed version of x.

Author(s)

Reza Mohammadi [e-mail] and Kevin Burke [e-mail]

See Also

scaler, minmax

Examples

x = c(2.3, -1.4, 0, 3.45)

zscore(x)
zscore(x, mean = 1, sd = 2)

liver documentation built on April 3, 2025, 10:51 p.m.