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annotate m-toolbox/classes/@smodel/linearize.m @ 40:977eb37f31cb database-connection-manager

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User friendlier errors from utils.mysql.connect
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Mon, 05 Dec 2011 18:04:03 +0100
parents f0afece42f48
children
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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 % LINEARIZE output the derivatives of the model relative to the parameters.
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2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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3 %
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4 % DESCRIPTION: LINEARIZE output the derivatives of the model relative to
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5 % the parameters. Output is a collection of models corresponding to the
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6 % derivative of input model for each parameter
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7 %
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8 % CALL: dmod = linearize(imod)
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9 %
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10 % <a href="matlab:utils.helper.displayMethodInfo('smodel', 'linearize')">Parameters Description</a>
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11 %
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12 % VERSION: $Id: linearize.m,v 1.9 2011/04/08 08:56:30 hewitson Exp $
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13 %
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14 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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15 function varargout = linearize(varargin)
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16
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17 % Check if this is a call for parameters
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18 if utils.helper.isinfocall(varargin{:})
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19 varargout{1} = getInfo(varargin{3});
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20 return
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21 end
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22
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23 % Check if the method was called by another method
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24 callerIsMethod = utils.helper.callerIsMethod;
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25
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26 % Collect input variable names
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27 in_names = cell(size(varargin));
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28 for ii = 1:nargin,in_names{ii} = inputname(ii);end
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29
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30 % Collect all smodels and plists
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31 [as, smodel_invars, rest] = utils.helper.collect_objects(varargin(:), 'smodel', in_names);
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32 [pl, pl_invars, rest] = utils.helper.collect_objects(rest(:), 'plist', in_names);
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33
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34 % Combine input plists and default plist
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35 pl = parse(pl, getDefaultPlist());
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36
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37 % run over input smodels
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38 dmod(numel(as),1) = collection;
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39 for jj = 1:numel(as)
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40 imod = as(jj);
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41 [mpars,idx] = sort(imod.params);
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42 mvals = imod.values(idx);
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43 imod.setParams(mpars, mvals);
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44
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45 pars = imod.params;
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46
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47 for ii = 1:numel(pars)
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48 tmod = diff(imod, pars{ii}); % do symbolic derivative for smodel
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49 % set the name of the parameter to the matrix, this is important to
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50 % identify automatically to what derivatives we are referring
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51 tmod.setName(pars{ii});
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52 dmod(jj).addObjects(tmod);
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53 end
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54 dmod(jj).setName(sprintf('linearize(%s)', imod.name));
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55 end
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56
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57 if ~callerIsMethod
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58 % Add history
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59 dmod.addHistory(getInfo('None'), pl, smodel_invars, [as(:).hist]);
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60 end
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61
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62 if nargout == 1
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63 varargout{1} = dmod;
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64 elseif nargout == numel(as)
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65 % List of outputs
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66 for jj = 1:numel(as)
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67 varargout{jj} = dmod.index(jj);
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68 end
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69 else
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70 error('Set at least one output value')
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71 end
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72
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73 end
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74
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75 %--------------------------------------------------------------------------
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76 % Get Info Object
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77 %--------------------------------------------------------------------------
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78 function ii = getInfo(varargin)
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79
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80 if nargin == 1 && strcmpi(varargin{1}, 'None')
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81 sets = {};
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82 pls = [];
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83 else
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84 sets = {'Default'};
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85 pls = getDefaultPlist;
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86 end
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87 % Build info object
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88 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);
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89 ii.setModifier(false);
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90 end
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91
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92 %--------------------------------------------------------------------------
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93 % Get Default Plist
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94 %--------------------------------------------------------------------------
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95 function plout = getDefaultPlist()
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96 persistent pl;
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97 if ~exist('pl', 'var') || isempty(pl)
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98 pl = buildplist();
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99 end
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100 plout = pl;
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101 end
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102
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103 function pl = buildplist()
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104 pl = plist.EMPTY_PLIST;
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105 end