package mathx

import "bitbucket.org/dtolpin/infergo/mathx"

Package mathx provides auxiliary elemental functions, ubiquitously useful but not found in package math.

Index ¶

• func LogGamma(x float64) float64
• func LogSumExp(x, y float64) float64
• func Sigm(x float64) float64

Package Files ¶

mathx.go

func LogGamma ¶ Uses

func LogGamma(x float64) float64

LogGamma is used in the log-density of the Gamma and Beta distributions.

func LogSumExp ¶ Uses

func LogSumExp(x, y float64) float64

LogSumExp computes log(exp(x) + exp(y)) robustly.

func Sigm ¶ Uses

func Sigm(x float64) float64

Sigmoid computes the sigmoid function 1/(1 + exp(-x)).