Mercurial > hg > ltpda
diff m-toolbox/classes/@ao/evaluateModel.m @ 0:f0afece42f48
Import.
author | Daniele Nicolodi <nicolodi@science.unitn.it> |
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date | Wed, 23 Nov 2011 19:22:13 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/m-toolbox/classes/@ao/evaluateModel.m Wed Nov 23 19:22:13 2011 +0100 @@ -0,0 +1,179 @@ +% EVALUATEMODEL evaluate a curvefit model. +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% +% DESCRIPTION: EVALUATEMODEL evaluate a curvefit model. +% +% CALL: b = evaluateModel(a, pl) +% +% INPUTS: a - input AO(s) containing parameter values. The parameter +% values are collected from the Y data of all input cdata +% AOs. The most common approach would be one AO per +% parameter, or a single AO with all parameters in. +% pl - parameter list (see below) +% +% OUTPUTs: b - an AO containing the model evaluated at the give X +% values, with the given parameter values. +% +% <a href="matlab:utils.helper.displayMethodInfo('ao', 'evaluateModel')">Parameters Description</a> +% +% VERSION: $Id: evaluateModel.m,v 1.14 2011/04/08 08:56:13 hewitson Exp $ +% +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +function varargout = evaluateModel(varargin) + + % Check if this is a call for parameters + if utils.helper.isinfocall(varargin{:}) + varargout{1} = getInfo(varargin{3}); + return + end + + import utils.const.* + utils.helper.msg(msg.PROC3, 'running %s/%s', mfilename('class'), mfilename); + + warning(['The method ''ao/curvefit'' and ''ao/evaluateModel'' have been replaced by ''ao/xfit'' and ''pest/eval''.' ... + 'They are no longer maintained and will be removed from future releases of LTPDA Toolbox.']); + + % Collect input variable names + in_names = cell(size(varargin)); + for ii = 1:nargin,in_names{ii} = inputname(ii);end + + % Collect all AOs and plists + [as, ao_invars] = utils.helper.collect_objects(varargin(:), 'ao', in_names); + pl = utils.helper.collect_objects(varargin(:), 'plist', in_names); + + %%% Decide on a deep copy or a modify + bs = copy(as, nargout); + + % Each of the input AOs should be a cdata AO; from these we get the + % parameter values + P = []; + for kk=1:numel(bs) + if isa(bs(kk).data, 'cdata') + P = [P; bs(kk).data.y(:)]; + else + warning('!!! AO %s is not a cdata AO. Not using for parameter values.', bs(kk).name); + end + end + + % combine plists + pl = parse(pl, getDefaultPlist()); + + % Extract necessary parameters + targetFcn = find(pl, 'Function'); + ADDP = find(pl, 'ADDP'); + dtype = find(pl, 'dtype'); + Xdata = find(pl, 'Xdata'); + if isa(Xdata, 'ao') + Xdata = Xdata.x; + end + + + if ~iscell(ADDP) + ADDP = {ADDP}; + end + + % Check parameters + if isempty(targetFcn) + error('### Please specify a target function'); + end + if isempty(P) + error('### Please give values for the parameters'); + end + + % Make an anonymous function of the target function + cmd = sprintf('tfunc = @(P,Xdata,ADDP)(%s);', targetFcn); + eval(cmd); + % Evaluate function at best fit + Y = tfunc(P, Xdata, ADDP); + if isa(Y, 'ao') + Y = Y.y; + end + + % Make new output AO + switch lower(dtype) + case 'tsdata' + out = ao(tsdata(Xdata,Y)); + out.data.setXunits('s'); + case 'fsdata' + out = ao(fsdata(Xdata,Y)); + out.data.setXunits('Hz'); + case 'xydata' + out = ao(xydata(Xdata,Y)); + otherwise + error('### Unknown data type specified. Choose from xydata, fsdata, or tsdata'); + end + + % Set output AO name + name = sprintf('eval(%s,', targetFcn); + for kk=1:numel(bs) + name = [name bs(kk).name ',']; + end + name = [name(1:end-1) ')']; + out.name = name; + % Add history + out.addHistory(getInfo('None'), pl, ao_invars, [bs(:).hist]); + + % Set outputs + if nargout > 0 + varargout{1} = out; + end +end + + +%-------------------------------------------------------------------------- +% Get Info Object +%-------------------------------------------------------------------------- +function ii = getInfo(varargin) + if nargin == 1 && strcmpi(varargin{1}, 'None') + sets = {}; + pl = []; + else + sets = {'Default'}; + pl = getDefaultPlist; + end + % Build info object + ii = minfo(mfilename, 'ao', 'ltpda', utils.const.categories.sigproc, '$Id: evaluateModel.m,v 1.14 2011/04/08 08:56:13 hewitson Exp $', sets, pl); +end + +%-------------------------------------------------------------------------- +% 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(); + + % Function + p = param({'Function', ['The function to evaluate. <br>'... + 'The function should be parameterized by the vector of '... + 'parameters P, the cell-array ADDP, and the '... + 'x-vector Xdata.'... + ]}, paramValue.EMPTY_STRING); + pl.append(p); + + % ADDP + p = param({'ADDP', 'A cell-array of additional parameters to pass to the target function'}, ... + {1, {{}}, paramValue.OPTIONAL}); + pl.append(p); + + % DTYPE + p = param({'dtype', 'The data type to interpret this model as.'}, {1, {'xydata', 'fsdata', 'tsdata'}, paramValue.SINGLE}); + pl.append(p); + + % XDATA + p = param({'Xdata', ['The X values to evaluate the model at.<br>'... + 'This can be a vector or an AO (from which the Xdata will '... + 'be extracted).']}, paramValue.EMPTY_DOUBLE); + pl.append(p); + + +end +% END