annotate m-toolbox/test/utils/test_2dim_vdfit.m @ 17:7afc99ec5f04 database-connection-manager

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 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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Daniele Nicolodi <nicolodi@science.unitn.it>
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2 % TEST Fitting procedure in 2dim z-domain VDFIT
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Daniele Nicolodi <nicolodi@science.unitn.it>
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3 % At the end you have 4 stable transfer functions in partial fractions
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Daniele Nicolodi <nicolodi@science.unitn.it>
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4 %
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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 % HISTORY: 02-10-2008 L Ferraioli
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Daniele Nicolodi <nicolodi@science.unitn.it>
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7 % Creation
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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 %% VERSION
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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 '$Id: test_2dim_vdfit.m,v 1.1 2009/04/23 10:11:26 luigi Exp $';
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12
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Daniele Nicolodi <nicolodi@science.unitn.it>
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13 %% Clear
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Daniele Nicolodi <nicolodi@science.unitn.it>
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14
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Daniele Nicolodi <nicolodi@science.unitn.it>
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15 clear all
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Daniele Nicolodi <nicolodi@science.unitn.it>
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16
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Daniele Nicolodi <nicolodi@science.unitn.it>
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17 %% Loading spectra
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Daniele Nicolodi <nicolodi@science.unitn.it>
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18
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Daniele Nicolodi <nicolodi@science.unitn.it>
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19 load ..\m-toolbox\test\mpsd.mat % load mpsd.mat first column is f then psd1, csd and psd2
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20
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Daniele Nicolodi <nicolodi@science.unitn.it>
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21 f = mpsd(:,1);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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22 csd11 = mpsd(:,2);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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23 csd12 = mpsd(:,3);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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24 csd21 = [];
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Daniele Nicolodi <nicolodi@science.unitn.it>
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25 csd22 = mpsd(:,4);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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26
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Daniele Nicolodi <nicolodi@science.unitn.it>
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27 fs = 10;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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28
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29
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Daniele Nicolodi <nicolodi@science.unitn.it>
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30 %% Eigendecomposition
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31
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Daniele Nicolodi <nicolodi@science.unitn.it>
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32 [tf11,tf12,tf21,tf22] = utils.math.eigcsd(csd11,csd12,csd21,csd22,'USESYM',0,'DIG',50,'OTP','TF');
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Daniele Nicolodi <nicolodi@science.unitn.it>
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33
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Daniele Nicolodi <nicolodi@science.unitn.it>
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34 %% Constructing vector
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Daniele Nicolodi <nicolodi@science.unitn.it>
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35
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Daniele Nicolodi <nicolodi@science.unitn.it>
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36 f1 = [tf11 tf21];
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Daniele Nicolodi <nicolodi@science.unitn.it>
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37 f2 = [tf12 tf22];
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Daniele Nicolodi <nicolodi@science.unitn.it>
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38
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Daniele Nicolodi <nicolodi@science.unitn.it>
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39 %% VDFIT
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Daniele Nicolodi <nicolodi@science.unitn.it>
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40 tic;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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41
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Daniele Nicolodi <nicolodi@science.unitn.it>
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42 clear mlr1 mlr2
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Daniele Nicolodi <nicolodi@science.unitn.it>
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43
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Daniele Nicolodi <nicolodi@science.unitn.it>
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44 N = 32; %Order of approximation
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Daniele Nicolodi <nicolodi@science.unitn.it>
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45
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Daniele Nicolodi <nicolodi@science.unitn.it>
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46
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Daniele Nicolodi <nicolodi@science.unitn.it>
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47 % Max Iteration
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Daniele Nicolodi <nicolodi@science.unitn.it>
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48 Nmaxiter = 40;
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49
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Daniele Nicolodi <nicolodi@science.unitn.it>
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50 % mlr1 = zeros(Nmaxiter,1);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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51 % mlr2 = zeros(Nmaxiter,1);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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52
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Daniele Nicolodi <nicolodi@science.unitn.it>
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53 % Fitting params
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Daniele Nicolodi <nicolodi@science.unitn.it>
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54 fitin.stable = 0;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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55 fitin.dterm = 0;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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56 fitin.plot = 0;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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57 fitin.fs = fs;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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58
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Daniele Nicolodi <nicolodi@science.unitn.it>
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59 weight = utils.math.wfun(f1,2);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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60 % weight = 1./abs(f1);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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61
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Daniele Nicolodi <nicolodi@science.unitn.it>
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62 pparams = struct('spolesopt',3, 'type','DISC', 'pamp', 0.98);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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63 poles1 = utils.math.startpoles(N,f,pparams);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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64 for hh = 1:Nmaxiter
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Daniele Nicolodi <nicolodi@science.unitn.it>
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65 [res1,poles1,dterm1,mresp1,rdl1,sqe1] = utils.math.vdfit(f1,f,poles1,weight,fitin); % Fitting
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Daniele Nicolodi <nicolodi@science.unitn.it>
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66 disp(['Iter' num2str(hh)])
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Daniele Nicolodi <nicolodi@science.unitn.it>
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67
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Daniele Nicolodi <nicolodi@science.unitn.it>
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68 % Stop condition checking
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Daniele Nicolodi <nicolodi@science.unitn.it>
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69 mlr1(hh) = sqe1(:,1);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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70 mlr2(hh) = sqe1(:,2);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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71 % [ext1,msg1] = utils.math.stopfit(f1(:,1),rdl1(:,1),mlr1,'lrsrmse',2,15);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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72 % [ext2,msg2] = utils.math.stopfit(f1(:,2),rdl1(:,2),mlr2,'lrsrmse',2,15);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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73
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Daniele Nicolodi <nicolodi@science.unitn.it>
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74 % order = length(poles1);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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75 % mlr1(hh) = mean(log10(abs(f1(:,1)))-log10(abs(rdl1(:,1))));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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76 % mlr2(hh) = mean(log10(abs(f1(:,2)))-log10(abs(rdl1(:,2))));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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77 % [ext1,msg1] = utils.math.stopfit(f1(:,1),rdl1(:,1),mlr1,order,'lrs',1,0.0001,2);
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78 % [ext2,msg2] = utils.math.stopfit(f1(:,2),rdl1(:,2),mlr2,order,'lrs',1,0.0001,2);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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79
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Daniele Nicolodi <nicolodi@science.unitn.it>
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80 % if ext1 && ext2
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Daniele Nicolodi <nicolodi@science.unitn.it>
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81 % disp(msg1)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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82 % break
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Daniele Nicolodi <nicolodi@science.unitn.it>
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83 % end
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Daniele Nicolodi <nicolodi@science.unitn.it>
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84
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Daniele Nicolodi <nicolodi@science.unitn.it>
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85 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
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86 elpstime = toc;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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87
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Daniele Nicolodi <nicolodi@science.unitn.it>
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88 % plotting squared error
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Daniele Nicolodi <nicolodi@science.unitn.it>
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89 figure()
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Daniele Nicolodi <nicolodi@science.unitn.it>
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90 semilogy(mlr1,'-ok')
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Daniele Nicolodi <nicolodi@science.unitn.it>
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91 hold on
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Daniele Nicolodi <nicolodi@science.unitn.it>
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92 grid on
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Daniele Nicolodi <nicolodi@science.unitn.it>
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93 semilogy(mlr2,'-or')
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Daniele Nicolodi <nicolodi@science.unitn.it>
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94
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Daniele Nicolodi <nicolodi@science.unitn.it>
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95 % % plotting RMS error variation
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Daniele Nicolodi <nicolodi@science.unitn.it>
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96 % figure()
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Daniele Nicolodi <nicolodi@science.unitn.it>
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97 % semilogy(abs(diff(sqrt(mlr1))),'-ok')
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Daniele Nicolodi <nicolodi@science.unitn.it>
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98 % hold on
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Daniele Nicolodi <nicolodi@science.unitn.it>
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99 % grid on
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Daniele Nicolodi <nicolodi@science.unitn.it>
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100 % semilogy(abs(diff(sqrt(mlr2))),'-or')
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Daniele Nicolodi <nicolodi@science.unitn.it>
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101
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Daniele Nicolodi <nicolodi@science.unitn.it>
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102 % plotting squared error variation
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Daniele Nicolodi <nicolodi@science.unitn.it>
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103 figure()
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Daniele Nicolodi <nicolodi@science.unitn.it>
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104 semilogy(abs(diff(mlr1)./mlr1(1,end-1)),'-ok')
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Daniele Nicolodi <nicolodi@science.unitn.it>
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105 hold on
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Daniele Nicolodi <nicolodi@science.unitn.it>
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106 grid on
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Daniele Nicolodi <nicolodi@science.unitn.it>
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107 semilogy(abs(diff(mlr2)./mlr2(1,end-1)),'-or')
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Daniele Nicolodi <nicolodi@science.unitn.it>
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108
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Daniele Nicolodi <nicolodi@science.unitn.it>
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109 %% All Passing
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Daniele Nicolodi <nicolodi@science.unitn.it>
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110
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Daniele Nicolodi <nicolodi@science.unitn.it>
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111 % [np1,resp1] = pfallpz(res1,poles1,dterm1,mresp1,f,fs);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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112 [nr1,np1,nd1,resp1] = utils.math.pfallpsymz(res1,poles1,dterm1,mresp1,f,fs);
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113
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Daniele Nicolodi <nicolodi@science.unitn.it>
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114
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Daniele Nicolodi <nicolodi@science.unitn.it>
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115 figure()
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Daniele Nicolodi <nicolodi@science.unitn.it>
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116 subplot(2,1,1);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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117 p1 = loglog(f,abs(mresp1),'k');
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Daniele Nicolodi <nicolodi@science.unitn.it>
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118 hold on
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Daniele Nicolodi <nicolodi@science.unitn.it>
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119 p2 = loglog(f,abs(resp1),'r');
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Daniele Nicolodi <nicolodi@science.unitn.it>
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120 xlabel('Frequency [Hz]')
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Daniele Nicolodi <nicolodi@science.unitn.it>
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121 ylabel('Amplitude')
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Daniele Nicolodi <nicolodi@science.unitn.it>
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122 legend([p1(1) p2(1)],'VDFIT','Stabilized')
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Daniele Nicolodi <nicolodi@science.unitn.it>
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123 hold off
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Daniele Nicolodi <nicolodi@science.unitn.it>
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124
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Daniele Nicolodi <nicolodi@science.unitn.it>
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125 subplot(2,1,2);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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126 p4 = semilogx(f,(180/pi).*unwrap(angle(mresp1)),'k');
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Daniele Nicolodi <nicolodi@science.unitn.it>
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127 hold on
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Daniele Nicolodi <nicolodi@science.unitn.it>
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128 p5 = semilogx(f,(180/pi).*unwrap(angle(resp1)),'r');
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Daniele Nicolodi <nicolodi@science.unitn.it>
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129 xlabel('Frequency [Hz]')
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Daniele Nicolodi <nicolodi@science.unitn.it>
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130 ylabel('Phase [Deg]')
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Daniele Nicolodi <nicolodi@science.unitn.it>
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131 legend([p4(1) p5(1)],'VDFIT', 'Stabilized')
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Daniele Nicolodi <nicolodi@science.unitn.it>
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132 hold off
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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 %% VDFIT
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Daniele Nicolodi <nicolodi@science.unitn.it>
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135
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Daniele Nicolodi <nicolodi@science.unitn.it>
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136 clear mlr3 mlr4 ext1 ext2
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Daniele Nicolodi <nicolodi@science.unitn.it>
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137 N = 24; %Order of approximation
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Daniele Nicolodi <nicolodi@science.unitn.it>
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138
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Daniele Nicolodi <nicolodi@science.unitn.it>
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139
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Daniele Nicolodi <nicolodi@science.unitn.it>
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140 % Max Iteration
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Daniele Nicolodi <nicolodi@science.unitn.it>
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141 Nmaxiter = 70;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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142
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Daniele Nicolodi <nicolodi@science.unitn.it>
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143 % Fitting params
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Daniele Nicolodi <nicolodi@science.unitn.it>
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144 fitin.stable = 0;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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145 fitin.dterm = 0;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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146 fitin.plot = 1;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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147 fitin.fs = fs;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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148
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Daniele Nicolodi <nicolodi@science.unitn.it>
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149 weight = utils.math.wfun(f2,2);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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150
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Daniele Nicolodi <nicolodi@science.unitn.it>
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151 pparams = struct('spolesopt',2, 'type','DISC', 'pamp', 0.98);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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152 poles2 = utils.math.startpoles(N,f,pparams);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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153
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Daniele Nicolodi <nicolodi@science.unitn.it>
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154 for hh = 1:Nmaxiter
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Daniele Nicolodi <nicolodi@science.unitn.it>
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155 [res2,poles2,dterm2,mresp2,rdl2,rmse2] = utils.math.vdfit(f2,f,poles2,weight,fitin); % Fitting
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Daniele Nicolodi <nicolodi@science.unitn.it>
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156 disp(['Iter' num2str(hh)])
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Daniele Nicolodi <nicolodi@science.unitn.it>
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157
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Daniele Nicolodi <nicolodi@science.unitn.it>
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158 % Stop condition checking
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Daniele Nicolodi <nicolodi@science.unitn.it>
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159 mlr3(hh) = rmse2(:,1);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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160 mlr4(hh) = rmse2(:,2);
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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161 [ext1,msg1] = utils.math.stopfit(f2(:,1),rdl2(:,1),mlr3,'lrsrmse',2,15);
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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162 [ext2,msg2] = utils.math.stopfit(f2(:,2),rdl2(:,2),mlr4,'lrsrmse',2,15);
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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163
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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164 if ext1 && ext2
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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165 disp(msg1)
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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166 break
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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167 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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168
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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169 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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170
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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171 % plotting RMS error
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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172 figure()
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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173 semilogy(mlr3,'-ok')
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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174 hold on
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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175 grid on
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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176 semilogy(mlr4,'-or')
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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177
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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178 %%
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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179 % params = struct('spolesopt',2, 'Nmaxiter',250, 'minorder',30,...
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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180 % 'maxorder',60, 'weightparam',1, 'plot',0,...
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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181 % 'ctp','lrs','lrscond',1,'lrsvarcond',1,'nrmsecond',2,...
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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182 % 'stabfit',0,'dterm',0,'spy',0);
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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183 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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184 % [res2,poles2,dterm2,mresp2,rdl2] = autodfit(f2,f,fs,params);