R/sigmoid.R

Defines functions d2sigmoid dsigmoid sigmoid

Documented in d2sigmoid dsigmoid sigmoid

sigmoid <- function(x) 1/(1 + exp(-x))

dsigmoid <- function(x) sigmoid(x) * (1 - sigmoid(x))

d2sigmoid <- function(x) dsigmoid(x) * (1 - 2 * sigmoid(x))

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e1071 documentation built on July 28, 2018, 5:02 p.m.