chi2rnd
              Random arrays from the chi-squared distribution.
 r = chi2rnd (df) returns an array of random numbers chosen
 from the chi-squared distribution with df degrees of freedom.  The size
 of r is the size of df.
 When called with a single size argument, chi2rnd returns a square
 matrix with the dimension specified.  When called with more than one scalar
 argument, the first two arguments are taken as the number of rows and columns
 and any further arguments specify additional matrix dimensions.  The size may
 also be specified with a row vector of dimensions, sz.
Further information about the chi-squared distribution can be found at https://en.wikipedia.org/wiki/Chi-squared_distribution
See also: chi2cdf, chi2inv, chi2pdf, chi2stat
Source Code: chi2rnd