% -*- texinfo -*-
% @deftypefn {Function File} {} beta_rnd (@var{a}, @var{b}, @var{r}, @var{c})
% @deftypefnx {Function File} {} beta_rnd (@var{a}, @var{b}, @var{sz})
% Return an @var{r} by @var{c} or @code{size (@var{sz})} matrix of
% random samples from the Beta distribution with parameters @var{a} and
% @var{b}. Both @var{a} and @var{b} must be scalar or of size @var{r}
% by @var{c}.
%
% If @var{r} and @var{c} are omitted, the size of the result matrix is
% the common size of @var{a} and @var{b}.
% @end deftypefn