--- /dev/null
+function R=tiedrank(X,DIM)
+% TIEDRANK compute rank of samples, the mean value is used in case of ties
+% this function is just a wrapper for RANKS, and provided for compatibility
+% with the statistics toolbox of matlab(tm)
+%
+% R = tiedrank(X)
+% computes the rank R of vector X
+%
+% see also: RANKS
+
+
+% $Id: tiedrank.m 8223 2011-04-20 09:16:06Z schloegl $
+% Copyright (C) 2009,2010 by Alois Schloegl <alois.schloegl@gmail.com>
+% This function is part of the NaN-toolbox
+% http://pub.ist.ac.at/~schloegl/matlab/NaN/
+
+% This program is free software; you can redistribute it and/or modify
+% it under the terms of the GNU General Public License as published by
+% the Free Software Foundation; either version 3 of the License, or
+% (at your option) any later version.
+%
+% This program is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with this program; If not, see <http://www.gnu.org/licenses/>.
+
+
+if nargin>1,
+ error('more than 1 input argument is currently not supported ')
+end;
+
+if nargout>1,
+ error('more than 1 output argument is currently not supported ')
+end;
+
+if nargin<2,
+ DIM = [];
+end;
+if isempty(DIM),
+ DIM = find(size(X)>1,1);
+ if isempty(DIM), DIM = 1; end;
+end
+if (DIM<1), DIM = 1; end; %% Hack, because min([])=0 for FreeMat v3.5
+
+R = ranks(X,DIM);
+
+
\ No newline at end of file