| softmax {baker} | R Documentation |
softmax
Description
uses logsumexp trick to prevent numerical overflow
Usage
softmax(x)
Arguments
x |
a vector of numbers |
Value
a vector of positive values that sum to one.
Examples
softmax2 <- function(x) exp(x) / sum(exp(x))
softmax(c(1, 2, 3) * 1000) # NaN NaN NaN
softmax2(c(1, 2, 3) * 1000) # 0 0 1
[Package baker version 1.0.3 Index]