R: Standardisation

Standardisation {Rfast} | R Documentation

## Standardisation

### Description

Standardisation.

### Usage

    standardise(x, center = TRUE, scale = TRUE)

### Arguments

`x` | A matrix with data. It has to be matrix, if it is data.frame for example the function does not turn it into a matrix.
`center` | Should the data be centred as well? TRUE or FALSE.
`scale` | Should the columns have unit variance, yes (TRUE) or no (FALSE)?

### Details

Similar to R's built in functions "scale" there is the option for centering or scaling only or both (default).

### Value

A matrix with the standardised data.

### Author(s)

Michail Tsagris

R implementation and documentation: Michail Tsagris <mtsagris@uoc.gr> and Manos Papadakis <papadakm95@gmail.com>.

### See Also

`colVars, colmeans, colMads`

### Examples

    x <- matrnorm( 100, 100 )
    a1 <- scale(x)[1:100, ]
    a2 <- standardise(x)
    all.equal(as.vector(a1), as.vector(a2))
    x <- NULL

[Package Rfast version 2.0.4 Index]