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annotate m-toolbox/classes/@smodel/diff.m @ 1:2014ba5b353a database-connection-manager

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Remove old code
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Sat, 03 Dec 2011 18:13:55 +0100
parents f0afece42f48
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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 % DIFF implements differentiation operator for smodel objects.
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2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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3 %
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4 % DESCRIPTION: DIFF implements differentiation operator for smodel objects.
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5 %
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6 % CALL: obj = diff(mdl, var)
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7 % obj = mdl.diff(var)
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8 % obj = mdl.diff(plist('var', var))
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9 %
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10 % <a href="matlab:utils.helper.displayMethodInfo('smodel', 'diff')">Parameters Description</a>
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11 %
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12 % VERSION: $Id: diff.m,v 1.12 2011/04/08 08:56:29 hewitson Exp $
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13 %
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14 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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15
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16 function varargout = diff(varargin)
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17
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18 % Settings
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19 operatorName = 'diff';
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20
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21 % Check if this is a call for parameters
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22 if utils.helper.isinfocall(varargin{:})
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23 varargout{1} = getInfo(varargin{3});
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24 return
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25 end
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26
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27 % Check if the method was called by another method
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28 callerIsMethod = utils.helper.callerIsMethod;
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29
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30 % Collect input variable names
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31 in_names = cell(size(varargin));
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32 for ii = 1:nargin,in_names{ii} = inputname(ii);end
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33
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34 % Collect all smodels and plists
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35 [mdl, smodel_invars, rest] = utils.helper.collect_objects(varargin(:), 'smodel', in_names);
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36 [pl, pl_invars, rest] = utils.helper.collect_objects(rest(:), 'plist', in_names);
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37
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38 if numel(mdl) ~= 1
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39 error('### diff only accepts one input smodel.');
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40 end
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41
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42 % Decide on a deep copy or a modify
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43 dmdl = copy(mdl, nargout);
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44
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45 % Combine input plists and default PLIST
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46 pl = parse(pl, getDefaultPlist());
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47
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48 % Select the variable to differentiate with respect to and the order:
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49 [var, n, pl] = utils.helper.process_smodel_diff_options(pl, rest);
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50
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51 % Check the variable
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52 if isempty(var)
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53 var = mdl.xvar;
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54 if iscell(var)
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55 var = var{1};
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56 end
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57 end
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58
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59 if isempty(var)
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60 error(['### Please specify a variable to differentiate with respect to, ' ...
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61 'or set the xvar properties of the model(s)!']);
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62 end
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63
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64 % If the method was called by another method, we do not need to set history.
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65 % As such, the info object can be empty
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66 if callerIsMethod
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67 infoObj = [];
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68 else
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69 infoObj = getInfo('None');
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70 end
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71
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72 % Apply the method to the model
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73 dmdl.sop(callerIsMethod, smodel_invars, operatorName, {var, n}, pl, infoObj);
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74
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75 % Set units
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76 if strcmp(var, mdl.xvar)
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77 setYunits(dmdl, dmdl.yunits ./ dmdl.xunits);
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78 end
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79
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80 % Set output
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81 varargout{1} = dmdl;
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82
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83 end
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84
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85 %--------------------------------------------------------------------------
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86 % Get Info Object
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87 %--------------------------------------------------------------------------
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88 function ii = getInfo(varargin)
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89
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90 if nargin == 1 && strcmpi(varargin{1}, 'None')
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91 sets = {};
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92 pls = [];
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93 else
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94 sets = {'Default'};
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95 pls = getDefaultPlist();
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96 end
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97 % Build info object
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98 ii = minfo(mfilename, 'smodel', 'ltpda', utils.const.categories.op, '$Id: diff.m,v 1.12 2011/04/08 08:56:29 hewitson Exp $', sets, pls);
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99 ii.setArgsmin(1);
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100 end
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101
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102 %--------------------------------------------------------------------------
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103 % Get Default Plist
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104 %--------------------------------------------------------------------------
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105 function plout = getDefaultPlist()
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106 persistent pl;
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107 if ~exist('pl', 'var') || isempty(pl)
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108 pl = buildplist();
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109 end
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110 plout = pl;
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111 end
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112
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113 function pl = buildplist()
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114 pl = plist();
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115
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116 % Var
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117 p = param({'var', ['Variable to differentiate with respect to.<br>' ...
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118 'If left empty, the x variable of the model(s) will be used']}, paramValue.STRING_VALUE(''));
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119 pl.append(p);
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120
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121 % n
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122 p = param({'n', 'Order of differentiation'}, {1, {1}, paramValue.OPTIONAL});
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123 pl.append(p);
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124 end
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125
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