Softmax transformation

softmax(x, log = FALSE, ref = TRUE, ...)

Arguments

x

Input matrix (e.g., linear predictors of multinomial logistic model)

log

Return on log-scale (default FALSE)

ref

Add reference level (add 0 column to x)

...

Additional arguments to lower level functions

Value

Numeric matrix of dimension n x p, where n= nrow(x) and p = ncol(x) + (ref==TRUE)