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annotate m-toolbox/classes/@ssm/removeEmptyBlocks.m @ 17:7afc99ec5f04 database-connection-manager

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Update ao_model_retrieve_in_timespan
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Mon, 05 Dec 2011 16:20:06 +0100
parents f0afece42f48
children
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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 % REMOVEEMPTYBLOCKS enables to do model simplification
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2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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3 %
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4 %
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5 % DESCRIPTION: REMOVEEMPTYBLOCKS allows you to eliminate input/state/output variables.
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6 %
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7 % CALL: [ssm] = REMOVEEMPTYBLOCKS(ssm, pl);
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8 %
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9 % INPUTS :
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10 % ssm - a ssm object
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11 % pl - an option plist
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12 %
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13 % OPTIONS :
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14 % plist with parameters 'inputs', 'states' and 'outputs' to indicate which
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15 % inputs, states and outputs variables are taken in account. This requires
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16 % proper variable naming. If a variable called appears more that once it
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17 % will be used once only.
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18 %
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19 % OUTPUTS:
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20 % The output array are of size Nsys*Noptions
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21 % sys_out - (array of) ssm objects without the specified information
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22 %
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23 %
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24 % <a href="matlab:utils.helper.displayMethodInfo('ssm', 'removeEmptyBlocks')">Parameters Description</a>
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25 %
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26 % VERSION: $Id: removeEmptyBlocks.m,v 1.2 2011/07/29 13:46:09 ferran Exp $
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27 %
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28 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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29
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30 function varargout = removeEmptyBlocks(varargin)
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31
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32 import utils.const.*
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33 utils.helper.msg(msg.PROC3, 'running %s/%s', mfilename('class'), mfilename);
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34 %% starting initial checks
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35
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36 % Check if this is a call for parameters
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37 if utils.helper.isinfocall(varargin{:})
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38 varargout{1} = getInfo(varargin{3});
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39 return
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40 end
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41
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42 % Collect input variable names
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43 in_names = cell(size(varargin));
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44 for ii = 1:nargin,in_names{ii} = inputname(ii);end
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45
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46 % Collect all SSMs and plists
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47 [sys, ssm_invars, rest] = utils.helper.collect_objects(varargin(:), 'ssm', in_names);
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48 [pl, invars2, rest] = utils.helper.collect_objects(rest(:), 'plist');
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49 if ~isempty(rest)
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50 pl = combine(pl, plist(rest{:}));
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51 end
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52 pl = combine(pl, getDefaultPlist);
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53
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54 Nsys = numel(sys);
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55 if Nsys ~= 1
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56 error('### Please input (only) one SSM model');
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57 end
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58
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59 % Decide on a deep copy or a modify, depending on the output
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60 sys = copy(sys, nargout);
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61
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62 %% begin function body
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63
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64 % Loop over input systems
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65 for i_sys=1:Nsys
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66 %% retrieving system data
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67 inputSizes = sys(i_sys).inputsizes;
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68 statesSizes = sys(i_sys).statesizes;
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69 outputSizes = sys(i_sys).outputsizes;
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70 keepInputs = inputSizes>0;
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71 keepStates = statesSizes>0;
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72 keepOutputs = outputSizes>0;
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73 %% selecting data
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74 sys.amats = sys.amats(keepStates, keepStates);
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75 sys.bmats = sys.bmats(keepStates, keepInputs);
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76 sys.cmats = sys.cmats(keepOutputs, keepStates);
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77 sys.dmats = sys.dmats(keepOutputs, keepInputs);
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78 sys.inputs = sys.inputs(keepInputs);
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79 sys.states = sys.states(keepStates);
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80 sys.outputs = sys.outputs(keepOutputs);
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81 %% updating size fields
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82 sys(i_sys).addHistory(ssm.getInfo(mfilename), pl , ssm_invars(i_sys), sys(i_sys).hist );
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83 %% checking system has some inputs and outputs left
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84 if sys(i_sys).Ninputs == 0
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85 error('The ssm object has no inputs, which is not allowed!')
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86 elseif sys(i_sys).Noutputs == 0
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87 error('The ssm object has no outputs, which is not allowed!')
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88 end
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89 end
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90
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91 if nargout == numel(sys)
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92 for ii = 1:numel(sys)
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93 varargout{ii} = sys(ii);
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94 end
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95 else
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96 varargout{1} = sys;
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97 end
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98 end
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99
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100
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101 %--------------------------------------------------------------------------
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102 % Get Info Object
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103 %--------------------------------------------------------------------------
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104 function ii = getInfo(varargin)
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105
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106 if nargin == 1 && strcmpi(varargin{1}, 'None')
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107 sets = {};
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108 pl = [];
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109 else
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110 sets = {'Default'};
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111 pl = getDefaultPlist;
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112 end
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113 % Build info object
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114 ii = minfo(mfilename, 'ssm', 'ltpda', utils.const.categories.op, '$Id: removeEmptyBlocks.m,v 1.2 2011/07/29 13:46:09 ferran Exp $', sets, pl);
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115 end
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116
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117 %--------------------------------------------------------------------------
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118 % Get Default Plist
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119 %--------------------------------------------------------------------------
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120 function pl = getDefaultPlist()
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121 pl = plist();
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122
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123 end
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124