--- /dev/null
+function DIM=flag_implicit_samplerate(i)
+% The use of FLAG_IMPLICIT_SAMPLERATE is in experimental state.
+% FLAG_IMPLICIT_SAMPLERATE might even become obsolete.
+% Do not use it.
+
+% FLAG_IMPLICIT_SAMPLERATE sets and gets default mode for handling NaNs
+% The default DIM argument is stored in the global variable FLAG_implicit_samplerate
+% The idea is that the DIM-argument is not necessary. This might enable
+% more readable code.
+%
+% flag_implicit_samplerate(0)
+% calculation along first non-singleton dimension
+% flag_implicit_samplerate(1)
+% calculation along columns
+% flag_implicit_samplerate(2)
+% calculation along rows
+%
+% DIM = flag_implicit_samplerate()
+% gets default mode
+%
+% flag_implicit_samplerate(DIM)
+% sets default DIM
+%
+% DIM = flag_implicit_samplerate(DIM)
+% gets and sets DIM
+%
+% features:
+% - compatible to Matlab and Octave
+%
+% see also: SINVEST1
+
+% $Id: flag_implicit_samplerate.m 5090 2008-06-05 08:12:04Z schloegl $
+% Copyright (C) 2000-2002,2008 by Alois Schloegl <a.schloegl@ieee.org>
+%
+% 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/>.
+
+global FLAG_implicit_samplerate;
+
+%%% check whether FLAG was already defined
+if exist('FLAG_implicit_samplerate')~=1,
+ FLAG_implicit_samplerate = 1;
+end;
+if isempty(FLAG_implicit_samplerate),
+ FLAG_implicit_samplerate = 1;
+end;
+
+if nargin>0,
+ fprintf(2,'Warning: FLAG_IMPLICIT_SAMPLERATE is in an experimental state\n');
+ fprintf(2,'It might become obsolete.\n');
+ FLAG_implicit_samplerate = i;
+end;
+
+DIM = FLAG_implicit_samplerate;