% -*- texinfo -*-
% @deftypefn {Function File} {} logncdf (@var{x}, @var{mu}, @var{sigma})
% For each element of @var{x}, compute the cumulative distribution
% function (CDF) at @var{x} of the lognormal distribution with
% parameters @var{mu} and @var{sigma}. If a random variable follows this
% distribution, its logarithm is normally distributed with mean
% @var{mu} and standard deviation @var{sigma}.
%
% Default values are @var{mu} = 1, @var{sigma} = 1.
% @end deftypefn