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annotate m-toolbox/classes/@ssm/ssmFromParfrac.m @ 14:6d43f39633b8 database-connection-manager

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Remove unused functions from utils.jmysql
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 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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2 %
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3 % FUNCTION: ssmFromParfrac
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4 %
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5 % DESCRIPTION: Construct a statespace model from a ssmFromParfrac
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6 %
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7 % CALL: see ssm, this function is private
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8 %
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9 % TODO: check must be made there is no pole zero cancelation
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10 %
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11 % VERSION : '$Id: ssmFromParfrac.m,v 1.10 2010/08/27 13:09:56 adrien Exp $';
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12 %
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13 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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14
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15 function varargout = ssmFromParfrac(varargin)
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16
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17 VERSION = '$Id: ssmFromParfrac.m,v 1.10 2010/08/27 13:09:56 adrien Exp $';
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18 utils.helper.msg(utils.const.msg.MNAME, ['running ', mfilename]);
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19 % get info
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20 ii = ssm.getInfo('ssm', 'From Description');
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21 % Set the method version string in the minfo object
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22 ii.setMversion([VERSION '-->' ii.mversion]);
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23
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24 if nargin ~=2
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25 error('ssmFromRational need 2 inputs : (obj, plist) ')
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26 elseif isa(varargin{1}, 'parfrac') && isa(varargin{2}, 'plist')
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27 pl = combine(varargin{2}, ii.plists);
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28 parfracsin = varargin{1};
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29 else
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30 error('### Please input (<object>,<plist>)');
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31 end
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32
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33 ssmout = ssm.initObjectWithSize(size(parfracsin,1),size(parfracsin,2));
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34 for i =1:numel(parfracsin)
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35
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36 res = parfracsin(i).res;
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37 poles = parfracsin(i).poles;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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38 dterm = parfracsin(i).dir;
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39 pmul = parfracsin(i).pmul;
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40
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41 % check poles multiplicity
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42 for jj=1:length(pmul)
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43 if pmul(jj)~=1;
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44 error('!!! Poles multiplicity higher than 1 is not supported')
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45 end
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46 end
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47
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48 % willing to work with columns
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49 if size(res,2)>1
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50 res = res.';
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51 end
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52 if size(poles,2)>1
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53 poles = poles.';
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54 end
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55
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56 Nss = numel(poles);
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57
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58 % convert to state space matrices
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59 [A,B,C,D] = utils.math.pf2ss(res,poles,dterm);
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60
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61
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62
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63 ssmout(i).dmats = {D};
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64 ssmout(i).amats = {A};
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65 ssmout(i).bmats = {B};
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66 ssmout(i).cmats = {C};
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67
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68 ssmout(i).name = parfracsin(i).name;
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69 ssmout(i).timestep = 0;
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70 ssmout(i).addHistory(ii, pl, {''}, parfracsin(i).hist);
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71
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72 inputstr = 'input';
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73 outputstr = 'output';
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74 ssstr = 'state';
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75
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76 ssmout(i).inputs = ssmblock.makeBlocksWithData({inputstr}, [], {{inputstr}}, {parfracsin(i).iunits}, []);
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77 ssmout(i).outputs = ssmblock.makeBlocksWithData({outputstr}, [], {{outputstr}}, {parfracsin(i).ounits}, []);
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78 ssmout(i).states = ssmblock.makeBlocksWithSize(Nss, ssstr);
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79
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80 if ~strcmp(pl.find('name'),'none')
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81 ssmout(i).name = pl.find('name');
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82 end
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83 if ~strcmp(pl.find('description'),'')
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84 ssmout(i).description = pl.find('description');
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85 end
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86 end
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87
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88 varargout = {ssmout};
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89 end
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90
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91