logit {HH}R Documentation

Logistic function and its inverse.

Description

Logistic function and its inverse.

Usage

logit(p)
antilogit(x)

Arguments

p Probability value, a vector of numbers between 0 and 1, inclusive.
x Real number, a vector of numbers between -Inf and Inf.

Value

Vector of real values log(p/(1-p)) for logit. Vector of probabilities exp(x)/(1+exp(x)) for antilogit with boundary values of -Inf and Inf for x correctly handled.

Author(s)

Richard M. Heiberger <rmh@temple.edu>

Examples

logit(seq(0,1,.1))
antilogit(logit(seq(0,1,.1)))

[Package HH version 2.1-25 Index]