Standardisation
Standardisation.
standardise(x, center = TRUE, scale = TRUE)
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)? |
Similar to R's built in functions "scale" there is the option for centering or scaling only or both (default).
A matrix with the standardised data.
Michail Tsagris
R implementation and documentation: Michail Tsagris <mtsagris@yahoo.gr> and Manos Papadakis <papadakm95@gmail.com>.
x <- matrnorm( 100, 100 ) a1 <- scale(x)[1:100, ] a2 <- standardise(x) all.equal(as.vector(a1), as.vector(a2)) x <- NULL
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