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view m-toolbox/classes/@smodel/linearize.m @ 37:a4b7ceae0403 database-connection-manager
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author | Daniele Nicolodi <nicolodi@science.unitn.it> |
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date | Mon, 05 Dec 2011 16:20:06 +0100 |
parents | f0afece42f48 |
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% LINEARIZE output the derivatives of the model relative to the parameters. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % DESCRIPTION: LINEARIZE output the derivatives of the model relative to % the parameters. Output is a collection of models corresponding to the % derivative of input model for each parameter % % CALL: dmod = linearize(imod) % % <a href="matlab:utils.helper.displayMethodInfo('smodel', 'linearize')">Parameters Description</a> % % VERSION: $Id: linearize.m,v 1.9 2011/04/08 08:56:30 hewitson Exp $ % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% function varargout = linearize(varargin) % Check if this is a call for parameters if utils.helper.isinfocall(varargin{:}) varargout{1} = getInfo(varargin{3}); return end % Check if the method was called by another method callerIsMethod = utils.helper.callerIsMethod; % Collect input variable names in_names = cell(size(varargin)); for ii = 1:nargin,in_names{ii} = inputname(ii);end % Collect all smodels and plists [as, smodel_invars, rest] = utils.helper.collect_objects(varargin(:), 'smodel', in_names); [pl, pl_invars, rest] = utils.helper.collect_objects(rest(:), 'plist', in_names); % Combine input plists and default plist pl = parse(pl, getDefaultPlist()); % run over input smodels dmod(numel(as),1) = collection; for jj = 1:numel(as) imod = as(jj); [mpars,idx] = sort(imod.params); mvals = imod.values(idx); imod.setParams(mpars, mvals); pars = imod.params; for ii = 1:numel(pars) tmod = diff(imod, pars{ii}); % do symbolic derivative for smodel % set the name of the parameter to the matrix, this is important to % identify automatically to what derivatives we are referring tmod.setName(pars{ii}); dmod(jj).addObjects(tmod); end dmod(jj).setName(sprintf('linearize(%s)', imod.name)); end if ~callerIsMethod % Add history dmod.addHistory(getInfo('None'), pl, smodel_invars, [as(:).hist]); end if nargout == 1 varargout{1} = dmod; elseif nargout == numel(as) % List of outputs for jj = 1:numel(as) varargout{jj} = dmod.index(jj); end else error('Set at least one output value') end end %-------------------------------------------------------------------------- % 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, 'smodel', 'ltpda', utils.const.categories.op, '$Id: linearize.m,v 1.9 2011/04/08 08:56:30 hewitson Exp $', sets, pls); ii.setModifier(false); end %-------------------------------------------------------------------------- % Get Default Plist %-------------------------------------------------------------------------- function plout = getDefaultPlist() persistent pl; if ~exist('pl', 'var') || isempty(pl) pl = buildplist(); end plout = pl; end function pl = buildplist() pl = plist.EMPTY_PLIST; end