Statistics Toolbox

logncdf

Lognormal cumulative distribution function.

Syntax

P = logncdf(X,MU,SIGMA)

Description

P = logncdf(X,MU,SIGMA) computes the lognormal cdf at each of the values in X using the corresponding means in MU and standard deviations in SIGMA. Vector or matrix inputs for X, MU, and SIGMA must have the same size, which is also the size of P. A scalar input for X, MU, or SIGMA is expanded to a constant matrix with the same dimensions as the other inputs.

The lognormal cdf is

Example

x = (0:0.2:10);
y = logncdf(x,0,1);
plot(x,y); grid;
xlabel('x'); ylabel('p');

Reference

Evans, M., N. Hastings, and B. Peacock, Statistical Distributions, Second Edition, John Wiley and Sons, 1993. p. 102-105.

See Also
cdf, logninv, lognpdf, lognrnd, lognstat

linkage

logninv