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function outsig=operator(Op,insig);
%-*- texinfo -*-
%@deftypefn {Function} operator
%@verbatim
%OPERATOR Apply operator
% Usage: c=operator(Op,f);
%
% c=OPERATOR(Op,f) applies the operator Op to the input signal f.
% The operator object Op must have been created using OPERATORNEW.
%
% If f is a matrix, the transform will be applied along the columns
% of f. If f is an N-D array, the transform will be applied along
% the first non-singleton dimension.
%
%@end verbatim
%@strong{Url}: @url{http://ltfat.github.io/doc/operators/operator.html}
%@seealso{operatornew, ioperator, operatoradj}
%@end deftypefn
% Copyright (C) 2005-2016 Peter L. Soendergaard <peter@sonderport.dk>.
% This file is part of LTFAT version 2.3.1
%
% 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<2
error('%s: Too few input parameters.',upper(mfilename));
end;
if ~isstruct(Op)
error('%s: First agument must be a operator definition structure.',upper(mfilename));
end;
switch(Op.type)
case 'framemul'
outsig=framemul(insig,Op.Fa,Op.Fs,Op.s);
case 'spread'
outsig=spreadop(insig,Op.s);
end;
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