geornd
              Random arrays from the geometric distribution.
 r = geornd (ps) returns an array of random numbers chosen
 from the Birnbaum-Saunders distribution with probability of success parameter
 ps.  The size of r is the size of ps.
 When called with a single size argument, geornd 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.
The geometric distribution models the number of failures (x) of a Bernoulli trial with probability ps before the first success.
Further information about the geometric distribution can be found at https://en.wikipedia.org/wiki/Geometric_distribution
See also: geocdf, geoinv, geopdf, geofit, geostat
Source Code: geornd