logistic_fun: Logistic function

In danilinares/quickpsy: Fits Psychometric Functions for Multiple Groups

Logistic function

Description

Logistic function of the form (1 + exp(-β * (x - α)))^(-1)

Usage

logistic_fun(x, p)

Arguments

x	Vector of values of the explanatory variable.
p	Vector of parameters p = c(α, β).

Value

Probability at each x.

See Also

inv_logistic_fun

Examples

library(ggplot2)
xseq <- seq(0, 4, .01)
yseq <- logistic_fun(xseq, c(2, 4))
curve <- data.frame(x = xseq, y = yseq)
ggplot(curve, aes(x = x, y = y)) + geom_line()

danilinares/quickpsy documentation built on Feb. 13, 2023, 8:44 p.m.