Logistic {base}

R Documentation

The Logistic Distribution

Description

These functions provide information about the logistic distribution with parameters location and scale. dlogis gives the density, plogis gives the distribution function qlogis gives the quantile function and rlogis generates random deviates.

The Logistic distribution with location a and scale b has density

f(x) = \frac{1}{b} \frac{e^{(x-a)/b}}{(1 + e^{(x-a)/b})^2}

Usage

dlogis(x, location, scale=1)
plogis(q, location, scale=1)
qlogis(p, location, scale=1)
rlogis(n, location, scale=1)

Examples

x <- 0:4
paste(dlogis(x, loc = 0)) == paste(exp(x) * (1 + exp(x))^-2)

---