view m-toolbox/classes/@matrix/fft.m @ 44:409a22968d5e
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Add unit tests
author
Daniele Nicolodi <nicolodi@science.unitn.it>
date
Tue, 06 Dec 2011 18:42:11 +0100 (2011-12-06)
parents
f0afece42f48
children
line source
+ − % FFT implements the fft operator for matrix objects.
+ − %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − %
+ − % DESCRIPTION: FFT implements the fft operator for matrix objects.
+ − %
+ − % CALL: out = fft(in,pl);
+ − %
+ − % INPUTS: in - input matrix objects
+ − % pl - parameter list
+ − %
+ − % OUTPUTS: out - output matrix objects
+ − %
+ − % <a href="matlab:utils.helper.displayMethodInfo('matrix', 'fft')">Parameters Description</a>
+ − %
+ − % VERSION: $Id: fft.m,v 1.6 2011/04/08 08:56:31 hewitson Exp $
+ − %
+ − %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ −
+ − function varargout = fft(varargin)
+ −
+ − % Check if this is a call for parameters
+ − if utils.helper.isinfocall(varargin{:})
+ − varargout{1} = getInfo(varargin{3});
+ − return
+ − end
+ −
+ − if nargout == 0
+ − error('### Matrix fft operator can not be used as a modifier.');
+ − end
+ −
+ − % Collect input variable names
+ − in_names = cell(size(varargin));
+ − for ii = 1:nargin
+ − in_names{ii} = inputname(ii);
+ − end
+ −
+ − % Collect all smodels and plists
+ − [ms, matrix_invars, rest] = utils.helper.collect_objects(varargin(:), 'matrix', in_names);
+ − [pl, pl_invars, rest] = utils.helper.collect_objects(varargin(:), 'plist', in_names);
+ −
+ − % Merge with default plist
+ − pl = parse(pl, getDefaultPlist);
+ −
+ − % deep copy
+ − mat = copy(ms,1);
+ −
+ − n = numel(mat);
+ −
+ − % loop over number of matrices
+ − for ii = 1:n
+ − % get size of object
+ − [rw,cl] = size(mat(ii).objs);
+ −
+ − % loop over raws and columns
+ − for kk = 1:rw
+ − for jj = 1:cl
+ − mat(ii).objs(kk,jj) = fft(mat(ii).objs(kk,jj),pl);
+ − end
+ − end
+ − mat(ii).addHistory(getInfo('None'), [], {inputname(1)}, [mat(ii).hist]);
+ − end
+ −
+ − varargout{1} = mat;
+ −
+ − end
+ −
+ −
+ −
+ − %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − % Local Functions %
+ − %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ −
+ − %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − %
+ − % FUNCTION: getInfo
+ − %
+ − % DESCRIPTION: Get Info Object
+ − %
+ − %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ −
+ − function ii = getInfo(varargin)
+ −
+ − if nargin == 1 && strcmpi(varargin{1}, 'None')
+ − sets = {};
+ − pls = [];
+ − else
+ − sets = {'Default'};
+ − pls = getDefaultPlist;
+ − end
+ − % Build info object
+ − ii = minfo(mfilename, 'matrix', 'ltpda', utils.const.categories.aop, '$Id: fft.m,v 1.6 2011/04/08 08:56:31 hewitson Exp $', sets, pls);
+ − ii.setArgsmin(2);
+ − ii.setModifier(false);
+ − end
+ −
+ − %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − %
+ − % FUNCTION: getDefaultPlist
+ − %
+ − % DESCRIPTION: Get Default Plist
+ − %
+ − %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ −
+ − function plout = getDefaultPlist()
+ − persistent pl;
+ − if exist('pl', 'var')==0 || isempty(pl)
+ − pl = buildplist();
+ − end
+ − plout = pl;
+ − end
+ −
+ − function pl = buildplist()
+ − pl = plist({'type', 'The fft type. Plain (complete non-symmetric), One-sided (from zero to Nyquist) or two-sided (complete symmetric).'},...
+ − {2, {'plain', 'one', 'two'}, paramValue.SINGLE});
+ − end