Inverse Logistic / Sigmoid Function
math
Solution
If
y = 1 / (1 + exp(-x))
then its inverse is
x = ln(y / (1 - y))
Problem
What is the inverse of the sigmoid (i.e. standard logistic) function? ``` sigmoid(x) = 1 / (1 + exp(-x)) ```
math
If
y = 1 / (1 + exp(-x))
then its inverse is
x = ln(y / (1 - y))
What is the inverse of the sigmoid (i.e. standard logistic) function? ``` sigmoid(x) = 1 / (1 + exp(-x)) ```