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## -*- texinfo -*-
## @deftypefn  {} {} etreeplot (@var{A})
## @deftypefnx {} {} etreeplot (@var{A}, @var{node_style}, @var{edge_style})
## Plot the elimination tree of the matrix @var{A} or
## @tcode{@var{A}+@var{A}'} if @var{A} in not symmetric.
##
## The optional parameters @var{node_style} and @var{edge_style} define the
## output style.
## @seealso{treeplot, gplot}
## @end deftypefn

function etreeplot (A, varargin)

  if (nargin < 1 || nargin > 3)
    print_usage ();
  endif

  treeplot (etree (A+A'), varargin{:});

endfunction


## Test input validation
%!error <Invalid call> etreeplot ()
%!error <Invalid call> etreeplot (1,2,3,4)