3.5.3.7.10 Lognpdf

Definition

lognpdf(X,mu,sigma) returns values at X of the lognormal probability density function with distribution parameters mu and sigma.

f(x|\mu ,\sigma )=\frac 1{x\sigma \sqrt{2\pi }}e^{\frac{-(\ln x-\mu )}{2\sigma ^2}}

Parameters

x (input, double)
x > 0
mu (input, double)
mean of the associated normal distribution .
sigma(input, double)
standard deviation of the associated normal distribution.sigma > 0

See Also

Cauchypdf, exppdf, gampdf, Lappdf, Normpdf, Poisspdf