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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 % SSM2MIIR converts a statespace model object to a miir object
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Daniele Nicolodi <nicolodi@science.unitn.it>
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2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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Daniele Nicolodi <nicolodi@science.unitn.it>
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3 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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4 % DESCRIPTION: SSM2MIIR converts a statespace model object to an miir object.
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Daniele Nicolodi <nicolodi@science.unitn.it>
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5 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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6 % CALL:
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Daniele Nicolodi <nicolodi@science.unitn.it>
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7 % >> filts = ssm2miir(ssm, pl);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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8 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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9 % INPUT :
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Daniele Nicolodi <nicolodi@science.unitn.it>
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10 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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11 % ssm - a ssm object
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Daniele Nicolodi <nicolodi@science.unitn.it>
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12 % pl - a plist with parameters 'inputs', 'states' and
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13 % 'outputs' to indicate which inputs, states and output
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14 % variables are taken in account. This requires proper
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Daniele Nicolodi <nicolodi@science.unitn.it>
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15 % variable naming. If a variable called appears more
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16 % that once it will be used once only.
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17 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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18 % OUTPUT:
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19 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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20 % filts - an array of miir filter objects
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21 %
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22 % <a href="matlab:utils.helper.displayMethodInfo('ssm', 'ssm2miir')">Parameters Description</a>
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23 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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24 % VERSION: $Id: ssm2miir.m,v 1.19 2011/04/08 08:56:23 hewitson Exp $
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25 %
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26 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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27
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28 function varargout = ssm2miir(varargin)
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29
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Daniele Nicolodi <nicolodi@science.unitn.it>
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30 %% starting initial checks
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31 % Check if this is a call for parameters
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Daniele Nicolodi <nicolodi@science.unitn.it>
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32 if utils.helper.isinfocall(varargin{:})
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Daniele Nicolodi <nicolodi@science.unitn.it>
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33 varargout{1} = getInfo(varargin{3});
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Daniele Nicolodi <nicolodi@science.unitn.it>
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34 return
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35 end
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36
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37 utils.helper.msg(utils.const.msg.MNAME, ['running ', mfilename]);
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38
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Daniele Nicolodi <nicolodi@science.unitn.it>
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39 % Collect input variable names
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Daniele Nicolodi <nicolodi@science.unitn.it>
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40 in_names = cell(size(varargin));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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41 for ii = 1:nargin,in_names{ii} = inputname(ii);end
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42
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Daniele Nicolodi <nicolodi@science.unitn.it>
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43 % Collect all SSMs and plists
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Daniele Nicolodi <nicolodi@science.unitn.it>
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44 [sys, ssm_invars, rest] = utils.helper.collect_objects(varargin(:), 'ssm', in_names);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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45 [pl, invars2, rest] = utils.helper.collect_objects(rest(:), 'plist');
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Daniele Nicolodi <nicolodi@science.unitn.it>
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46 if ~isempty(rest)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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47 pl = combine(pl, plist(rest{:}));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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48 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
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49 pl = combine(pl, getDefaultPlist);
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50
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51 if numel(sys) ~= 1
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52 error('### Input (only) one SSM object.');
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53 end
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54
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55 %% begin function body
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56 % minimal Realization
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57 sys.sMinReal();
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58
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Daniele Nicolodi <nicolodi@science.unitn.it>
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59 %% convert to double
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60 % Convert to double arrays
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61 [A,B,C,D,Ts,inputvarnames,ssvarnames,outputvarnames, inputunit, ssunit, outputunit] =...
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Daniele Nicolodi <nicolodi@science.unitn.it>
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62 double(sys, pl);
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63
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Daniele Nicolodi <nicolodi@science.unitn.it>
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64 Ninputs_out = numel(inputvarnames);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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65 Noutputs_out = numel(outputvarnames);
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66
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67 if ~(Ts > 0)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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68 error('ssm should be time-discrete, use ssm2rational instead')
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Daniele Nicolodi <nicolodi@science.unitn.it>
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69 end
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70
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Daniele Nicolodi <nicolodi@science.unitn.it>
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71 %% convert to miir
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72 miir_out = miir.initObjectWithSize(Noutputs_out, Ninputs_out);
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73
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Daniele Nicolodi <nicolodi@science.unitn.it>
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74 for ii=1:Ninputs_out
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Daniele Nicolodi <nicolodi@science.unitn.it>
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75 for oo=1:Noutputs_out
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76
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Daniele Nicolodi <nicolodi@science.unitn.it>
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77 [a,b] = ss2tf(A,B(:,ii),C(oo,:),D(oo, ii ));
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78 name = [ssm_invars{1},' : ',inputvarnames{ii},' -> ',outputvarnames{oo}];
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Daniele Nicolodi <nicolodi@science.unitn.it>
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79 pl = plist('inunits', inputunit(ii), 'ounits' ,outputunit(oo));
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80 if b==0
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Daniele Nicolodi <nicolodi@science.unitn.it>
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81 m = miir(); % CASE TO DELETE???
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82 else
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83 data = plist('a', real(a), 'b', real(b),'fs', 1/sys.timestep);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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84 m = miir(data.combine( pl));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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85 end
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86 m.addHistory(ssm.getInfo(mfilename), pl , ssm_invars, sys.hist );
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87 m.name = name;
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88 miir_out(oo, ii) = m;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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89 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
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90 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
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91 if nargout == numel(miir_out)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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92 for ii = 1:numel(miir_out)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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93 varargout{ii} = miir_out(ii);
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94 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
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95 else
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Daniele Nicolodi <nicolodi@science.unitn.it>
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96 varargout{1} = miir_out;
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97 end
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98
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99 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
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100
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101
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Daniele Nicolodi <nicolodi@science.unitn.it>
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102 %--------------------------------------------------------------------------
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Daniele Nicolodi <nicolodi@science.unitn.it>
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103 % Get Info Object
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104 %--------------------------------------------------------------------------
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Daniele Nicolodi <nicolodi@science.unitn.it>
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105 function ii = getInfo(varargin)
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106
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Daniele Nicolodi <nicolodi@science.unitn.it>
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107 if nargin == 1 && strcmpi(varargin{1}, 'None')
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Daniele Nicolodi <nicolodi@science.unitn.it>
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108 sets = {};
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Daniele Nicolodi <nicolodi@science.unitn.it>
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109 pl = [];
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110 else
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Daniele Nicolodi <nicolodi@science.unitn.it>
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111 sets = {'Default'};
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Daniele Nicolodi <nicolodi@science.unitn.it>
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112 pl = getDefaultPlist;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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113 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
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114 % Build info object
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115 ii = minfo(mfilename, 'ssm', 'ltpda', utils.const.categories.converter, '$Id: ssm2miir.m,v 1.19 2011/04/08 08:56:23 hewitson Exp $', sets, pl);
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116 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
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117
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118 %--------------------------------------------------------------------------
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119 % Get Default Plist
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120 %--------------------------------------------------------------------------
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121 function pl = getDefaultPlist()
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122 pl = plist();
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123
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Daniele Nicolodi <nicolodi@science.unitn.it>
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124 p = param({'inputs', ['Specify the inputs. Give one of:<ul>'...
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Daniele Nicolodi <nicolodi@science.unitn.it>
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125 '<li>A cell-array of input port names.</li>'...
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Daniele Nicolodi <nicolodi@science.unitn.it>
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126 '<li>A cell-array of logical arrays specifying which input ports to use for each input block.</li>'...
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Daniele Nicolodi <nicolodi@science.unitn.it>
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127 '<li>A cell-array of double values specifying which input ports to use for each input block.<li>'...
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128 '<li>The string ''ALL'' to use all inputs.']}, paramValue.STRING_VALUE('ALL'));
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129 pl.append(p);
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130
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Daniele Nicolodi <nicolodi@science.unitn.it>
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131 p = param({'states', 'Specify the states. Specify the states as for the ''inputs'' parameter.'}, paramValue.STRING_VALUE('ALL'));
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132 pl.append(p);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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133
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Daniele Nicolodi <nicolodi@science.unitn.it>
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134 p = param({'outputs', 'Specify the outputs. Specify the outputs as for the ''inputs'' parameter.'}, paramValue.STRING_VALUE('ALL'));
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135 pl.append(p);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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136 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
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137