annotate m-toolbox/test/utils/test_loglikehood_ssm_td.m @ 28:01b86b780ba7 database-connection-manager

Remove LTPDARepositoryManager implementation. Java code
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 loglikehood_ssm_td
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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 % Test with an harmonic hoscillator and simplex parameters search
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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 % L Ferraioli 11-10-2010
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Daniele Nicolodi <nicolodi@science.unitn.it>
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7 %
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Daniele Nicolodi <nicolodi@science.unitn.it>
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8 % $Id: test_loglikehood_ssm_td.m,v 1.3 2010/11/26 13:52:32 luigi Exp $
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Daniele Nicolodi <nicolodi@science.unitn.it>
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9 %
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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 %% set parameters
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Daniele Nicolodi <nicolodi@science.unitn.it>
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12
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Daniele Nicolodi <nicolodi@science.unitn.it>
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13 m = 2; % kg
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Daniele Nicolodi <nicolodi@science.unitn.it>
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14 k = 0.1; % kg s^-2
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Daniele Nicolodi <nicolodi@science.unitn.it>
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15 damp = 0.05; % kg s^-1
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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 fAmp = 3;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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18 NAmp = 1;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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19 fs = 1;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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20
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Daniele Nicolodi <nicolodi@science.unitn.it>
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21 cutbefore = 100*fs;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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22 cutafter = 500*fs;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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23
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Daniele Nicolodi <nicolodi@science.unitn.it>
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24 f = logspace(-5+log10(fs),log10(fs/2),300);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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25
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Daniele Nicolodi <nicolodi@science.unitn.it>
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26 %% Load model
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Daniele Nicolodi <nicolodi@science.unitn.it>
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27
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Daniele Nicolodi <nicolodi@science.unitn.it>
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28 sys = ssm(plist('built-in', 'HARMONIC_OSC_1D', 'SYMBOLIC PARAMS',{'M', 'K', 'VBETA'}));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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29 sys = sys.setParameters(plist('names',{'M', 'K', 'VBETA'},'values',[m k damp]));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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30 sys.keepParameters();
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Daniele Nicolodi <nicolodi@science.unitn.it>
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31 sys.modifyTimeStep(plist('newtimestep',1/fs));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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32
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Daniele Nicolodi <nicolodi@science.unitn.it>
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33 pl = plist('inputs', 'COMMAND.Force', 'HARMONIC_OSC_1D.outputs', 'Position', 'f', f);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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34 h = bode(sys,pl);
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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 iplot(h)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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37
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Daniele Nicolodi <nicolodi@science.unitn.it>
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38 %% input force and readout noise
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Daniele Nicolodi <nicolodi@science.unitn.it>
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39
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Daniele Nicolodi <nicolodi@science.unitn.it>
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40 % input force
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Daniele Nicolodi <nicolodi@science.unitn.it>
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41 fc = ao(plist('waveform','sine wave','A',fAmp,'f',1e-1,'phi',0,'toff',cutbefore/fs,'nsecs',6e2,'fs',fs));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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42 in = zeropad(fc,plist('Position','post','N',cutafter));
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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
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Daniele Nicolodi <nicolodi@science.unitn.it>
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45 rn = ao(plist('tsfcn', 'randn(size(t))', 'fs', fs, 'nsecs', in.nsecs));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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46 rn = rn.*NAmp;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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47
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Daniele Nicolodi <nicolodi@science.unitn.it>
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48
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Daniele Nicolodi <nicolodi@science.unitn.it>
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49
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Daniele Nicolodi <nicolodi@science.unitn.it>
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50 %% Simulate the system
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Daniele Nicolodi <nicolodi@science.unitn.it>
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51
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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 plsym = plist('AOS VARIABLE NAMES',{'COMMAND.Force','noise.readout'},...
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Daniele Nicolodi <nicolodi@science.unitn.it>
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54 'RETURN OUTPUTS','HARMONIC_OSC_1D.position',...
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Daniele Nicolodi <nicolodi@science.unitn.it>
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55 'AOS',[in,rn]);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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56 out = simulate(sys,plsym);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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57
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Daniele Nicolodi <nicolodi@science.unitn.it>
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58 iplot(out,rn)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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59
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Daniele Nicolodi <nicolodi@science.unitn.it>
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60
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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
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Daniele Nicolodi <nicolodi@science.unitn.it>
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63 %% Do chisquare parameter search
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Daniele Nicolodi <nicolodi@science.unitn.it>
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64
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Daniele Nicolodi <nicolodi@science.unitn.it>
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65
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Daniele Nicolodi <nicolodi@science.unitn.it>
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66 mod = ssm(plist('built-in', 'HARMONIC_OSC_1D',...
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Daniele Nicolodi <nicolodi@science.unitn.it>
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67 'SYMBOLIC PARAMS',{'M', 'K', 'VBETA'}));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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68 inNames = {'COMMAND.Force'};
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Daniele Nicolodi <nicolodi@science.unitn.it>
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69 outNames = {'HARMONIC_OSC_1D.position'};
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Daniele Nicolodi <nicolodi@science.unitn.it>
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70 parnames = {'m', 'k', 'vbeta'};
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Daniele Nicolodi <nicolodi@science.unitn.it>
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71
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Daniele Nicolodi <nicolodi@science.unitn.it>
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72
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Daniele Nicolodi <nicolodi@science.unitn.it>
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73 x0 = [1 1 1];
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Daniele Nicolodi <nicolodi@science.unitn.it>
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74 x0 = [2.5 0.08 0.1];
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Daniele Nicolodi <nicolodi@science.unitn.it>
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75
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Daniele Nicolodi <nicolodi@science.unitn.it>
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76
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Daniele Nicolodi <nicolodi@science.unitn.it>
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77 % loglk =
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Daniele Nicolodi <nicolodi@science.unitn.it>
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78 % loglikehood_ssm_td(xp,in,out,parnames,model,inNames,outNames,varargin)
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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 xp2 = fminsearch(@(x)utils.math.chisquare_ssm_td(x,in,out,parnames,mod,inNames,outNames,'cutbefore',cutbefore,'cutafter',cutafter),x0,optimset('Display','iter'));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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81
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Daniele Nicolodi <nicolodi@science.unitn.it>
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82
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Daniele Nicolodi <nicolodi@science.unitn.it>
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83
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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
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Daniele Nicolodi <nicolodi@science.unitn.it>
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86 sys = copy(mod,1);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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87 sys = sys.setParameters(plist('names',{'M', 'K', 'VBETA'},'values',xp2));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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88 sys.keepParameters();
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Daniele Nicolodi <nicolodi@science.unitn.it>
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89 sys.modifyTimeStep(plist('newtimestep',1/fs));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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90
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Daniele Nicolodi <nicolodi@science.unitn.it>
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91 plsym = plist('AOS VARIABLE NAMES',{'COMMAND.Force'},...
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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92 'RETURN OUTPUTS','HARMONIC_OSC_1D.position',...
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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93 'AOS',[in]);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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94 outfit2 = simulate(sys,plsym);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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95
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Daniele Nicolodi <nicolodi@science.unitn.it>
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96 iplot(out,outfit2)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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97 iplot(out-outfit2)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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98 iplot(out-outfit2-rn)
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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99
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Daniele Nicolodi <nicolodi@science.unitn.it>
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100 % xp =
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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 % 2.22352087931512 0.588010809495998 0.195689637008003
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Daniele Nicolodi <nicolodi@science.unitn.it>
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103
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Daniele Nicolodi <nicolodi@science.unitn.it>
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104
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Daniele Nicolodi <nicolodi@science.unitn.it>
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105
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Daniele Nicolodi <nicolodi@science.unitn.it>
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106 %% Do parameters search
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Daniele Nicolodi <nicolodi@science.unitn.it>
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107
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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>
parents:
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109 mod = ssm(plist('built-in', 'HARMONIC_OSC_1D',...
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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110 'SYMBOLIC PARAMS',{'M', 'K', 'VBETA'}));
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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111 inNames = {'COMMAND.Force'};
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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112 outNames = {'HARMONIC_OSC_1D.position'};
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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113 inNoiseNames = {'noise.readout'};
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Daniele Nicolodi <nicolodi@science.unitn.it>
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114 inNoise = rn;
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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115 outNoiseNames = {'HARMONIC_OSC_1D.position'};
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Daniele Nicolodi <nicolodi@science.unitn.it>
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116 parnames = {'M', 'K', 'VBETA'};
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Daniele Nicolodi <nicolodi@science.unitn.it>
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117
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Daniele Nicolodi <nicolodi@science.unitn.it>
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118
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Daniele Nicolodi <nicolodi@science.unitn.it>
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119 % x0 = xp2;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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120 x0 = [2.5 0.08 0.1];
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Daniele Nicolodi <nicolodi@science.unitn.it>
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121
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Daniele Nicolodi <nicolodi@science.unitn.it>
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122 % loglk =
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Daniele Nicolodi <nicolodi@science.unitn.it>
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123 % loglikehood_ssm_td(xp,in,out,parnames,model,inNames,outNames,varargin)
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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
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Daniele Nicolodi <nicolodi@science.unitn.it>
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126
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Daniele Nicolodi <nicolodi@science.unitn.it>
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127 xp = fminsearch(@(x)utils.math.loglikehood_ssm_td(x,in,out,parnames,mod,inNames,outNames,rn,'cutbefore',cutbefore,'cutafter',cutafter),x0,optimset('Display','iter'));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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128
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Daniele Nicolodi <nicolodi@science.unitn.it>
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129
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Daniele Nicolodi <nicolodi@science.unitn.it>
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130
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Daniele Nicolodi <nicolodi@science.unitn.it>
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131 %%
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Daniele Nicolodi <nicolodi@science.unitn.it>
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132
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Daniele Nicolodi <nicolodi@science.unitn.it>
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133 sys = copy(mod,1);
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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134 sys = sys.setParameters(plist('names',{'M', 'K', 'VBETA'},'values',xp));
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Daniele Nicolodi <nicolodi@science.unitn.it>
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135 sys.keepParameters();
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Daniele Nicolodi <nicolodi@science.unitn.it>
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136 sys.modifyTimeStep(plist('newtimestep',1/fs));
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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137
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Daniele Nicolodi <nicolodi@science.unitn.it>
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138 plsym = plist('AOS VARIABLE NAMES',{'COMMAND.Force'},...
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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139 'RETURN OUTPUTS','HARMONIC_OSC_1D.position',...
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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140 'AOS',[in]);
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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141 outfit = simulate(sys,plsym);
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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 iplot(out,outfit)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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144 iplot(out-outfit)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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145 iplot(out-outfit-rn)
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Daniele Nicolodi <nicolodi@science.unitn.it>
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146
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Daniele Nicolodi <nicolodi@science.unitn.it>
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147
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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 %% test covariace estimation
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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 mod = ssm(plist('built-in', 'HARMONIC_OSC_1D',...
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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152 'SYMBOLIC PARAMS',{'M', 'K', 'VBETA'}));
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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153 inNames = {'COMMAND.Force'};
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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154 outNames = {'HARMONIC_OSC_1D.position'};
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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155 parnames = {'m', 'k', 'vbeta'};
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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156
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Daniele Nicolodi <nicolodi@science.unitn.it>
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157 sys = copy(mod,1);
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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158 sys = sys.setParameters(plist('names',{'M', 'K', 'VBETA'},'values',[m k damp]));
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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159 sys.keepParameters();
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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160 sys.modifyTimeStep(plist('newtimestep',1/fs));
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
161
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
162 plsym = plist('AOS VARIABLE NAMES',{'COMMAND.Force'},...
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
163 'RETURN OUTPUTS','HARMONIC_OSC_1D.position',...
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
164 'AOS',[in]);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
165 modeout = simulate(sys,plsym);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
166
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
167 % get noise
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
168 noise = out - modeout;
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
169 nn = noise.y;
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
170 % get covariance matrix
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
171 cmat = utils.math.xCovmat(nn);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
172 cmatseq = cmat(1,:);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
173
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
174 % get covariance sequance
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
175 [cseq,lags] = xcov(nn,'unbiased');
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
176 cseq = ifftshift(cseq);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
177 lags=ifftshift(lags);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
178 cseqr = cseq(1:numel(cmatseq));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
179 lagsr = lags(1:numel(cmatseq));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
180 lagsr = lagsr.';
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
181
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
182 % compare results
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
183 figure
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
184 plot(lagsr,cmatseq.','k')
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
185 hold on
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
186 plot(lagsr,cseqr,'r')
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
187
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
188 figure
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
189 plot(lagsr,cmatseq.'-cseqr,'k')
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
190
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
191 [R,p] = chol(cmat);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
192 d = eig(cmat);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
193 % md = min(d);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
194 % cmat2 = cmat + abs(md).*eye(size(cmat));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
195 % [R,p] = chol(cmat2);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
196
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
197 ccmat = fliplr(flipud(cmat));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
198 [RR,pp] = chol(ccmat);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
199
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
200 %% correlation matrix
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
201
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
202 [corr,sig] = utils.math.cov2corr(cmat);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
203
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
204 % test positive definiteness
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
205 [R,p] = chol(corr);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
206
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
207 % get a valid correlation
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
208 newcorr = validcorr(corr);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
209
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
210 %%
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
211
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
212 % get covariance sequance
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
213 [cseq,lags] = xcov(nn,'unbiased');
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
214 Num = numel(nn);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
215 for ii=1:Num
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
216
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
217 ccmat(ii,:) = cseq(Num-ii+1:2*Num-ii);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
218
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
219 end
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
220
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
221 [R,p] = chol(ccmat);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
222
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
223
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
224 %% test the likelihood
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
225
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
226 mod = ssm(plist('built-in', 'HARMONIC_OSC_1D',...
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
227 'SYMBOLIC PARAMS',{'M', 'K', 'VBETA'}));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
228 inNames = {'COMMAND.Force'};
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
229 outNames = {'HARMONIC_OSC_1D.position'};
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
230 parnames = {'m', 'k', 'vbeta'};
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
231
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
232 sys = copy(mod,1);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
233 sys = sys.setParameters(plist('names',{'M', 'K', 'VBETA'},'values',[m k damp]));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
234 sys.keepParameters();
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
235 sys.modifyTimeStep(plist('newtimestep',1/fs));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
236
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
237 plsym = plist('AOS VARIABLE NAMES',{'COMMAND.Force'},...
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
238 'RETURN OUTPUTS','HARMONIC_OSC_1D.position',...
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
239 'AOS',[in]);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
240 modeout1 = simulate(sys,plsym);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
241
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
242 sys = copy(mod,1);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
243 sys = sys.setParameters(plist('names',{'M', 'K', 'VBETA'},'values',[1 1 1]));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
244 sys.keepParameters();
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
245 sys.modifyTimeStep(plist('newtimestep',1/fs));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
246
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
247 plsym = plist('AOS VARIABLE NAMES',{'COMMAND.Force'},...
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
248 'RETURN OUTPUTS','HARMONIC_OSC_1D.position',...
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
249 'AOS',[in]);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
250 modeout2 = simulate(sys,plsym);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
251
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
252 % xp = [1.1 0.6 0.01];
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
253
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
254 sys = copy(mod,1);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
255 sys = sys.setParameters(plist('names',{'M', 'K', 'VBETA'},'values',xp));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
256 sys.keepParameters();
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
257 sys.modifyTimeStep(plist('newtimestep',1/fs));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
258
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
259 plsym = plist('AOS VARIABLE NAMES',{'COMMAND.Force'},...
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
260 'RETURN OUTPUTS','HARMONIC_OSC_1D.position',...
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
261 'AOS',[in]);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
262 modeout3 = simulate(sys,plsym);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
263
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
264 % xp2 = [2.22352087931512 0.588010809495998 0.195689637008003];
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
265
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
266 sys = copy(mod,1);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
267 sys = sys.setParameters(plist('names',{'M', 'K', 'VBETA'},'values',xp2));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
268 sys.keepParameters();
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
269 sys.modifyTimeStep(plist('newtimestep',1/fs));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
270
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
271 plsym = plist('AOS VARIABLE NAMES',{'COMMAND.Force'},...
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
272 'RETURN OUTPUTS','HARMONIC_OSC_1D.position',...
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
273 'AOS',[in]);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
274 modeout4 = simulate(sys,plsym);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
275
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
276 % get noise
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
277 noise1 = out - modeout1; % true values
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
278 noise2 = out - modeout2; % starting guess
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
279 noise3 = out - modeout3; % fit values
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
280 noise4 = out - modeout4; % chi2 fit values
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
281
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
282
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
283 lik1 = utils.math.loglikehood_td(noise1,'cutbefore',cutbefore,'cutafter',cutafter)
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
284 lik2 = utils.math.loglikehood_td(noise2,'cutbefore',cutbefore,'cutafter',cutafter)
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
285 lik3 = utils.math.loglikehood_td(noise3,'cutbefore',cutbefore,'cutafter',cutafter)
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
286 lik4 = utils.math.loglikehood_td(noise4,'cutbefore',cutbefore,'cutafter',cutafter)
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
287
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
288 %% test a uniform grid
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
289
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
290 mod = ssm(plist('built-in', 'HARMONIC_OSC_1D',...
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
291 'SYMBOLIC PARAMS',{'M', 'K', 'VBETA'}));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
292 inNames = {'COMMAND.Force'};
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
293 outNames = {'HARMONIC_OSC_1D.position'};
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
294 parnames = {'m', 'k', 'vbeta'};
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
295
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
296 mm = [1.8:0.02:2.2];
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
297 kc = [0.1:0.02:1];
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
298 dd = [0.01:0.02:1];
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
299
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
300 idx = 1;
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
301 pars = struct;
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
302
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
303 Ntot = numel(mm)*numel(kc)*numel(dd);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
304
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
305 lik = zeros(Ntot,1);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
306 %%
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
307
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
308 for ii=1:numel(mm)
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
309 for jj=1:numel(kc)
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
310 for kk=1:numel(dd)
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
311
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
312 fprintf('step %s of %s\n',num2str(idx),num2str(Ntot));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
313 pars(idx).m = mm(ii);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
314 pars(idx).k = kc(jj);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
315 pars(idx).damp = dd(kk);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
316
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
317 sys = copy(mod,1);
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
318 sys = sys.setParameters(plist('names',{'M', 'K', 'VBETA'},'values',[mm(ii) kc(jj) dd(kk)]));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
319 sys.keepParameters();
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
320 sys.modifyTimeStep(plist('newtimestep',1/fs));
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
321
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
diff changeset
322 plsym = plist('AOS VARIABLE NAMES',{'COMMAND.Force'},...
f0afece42f48 Import.
Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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323 'RETURN OUTPUTS','HARMONIC_OSC_1D.position',...
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Daniele Nicolodi <nicolodi@science.unitn.it>
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324 'AOS',[in]);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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325 modeout = simulate(sys,plsym);
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Daniele Nicolodi <nicolodi@science.unitn.it>
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326
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Daniele Nicolodi <nicolodi@science.unitn.it>
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327 noise = out - modeout;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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328
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Daniele Nicolodi <nicolodi@science.unitn.it>
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329 lik(idx) = utils.math.loglikehood_td(noise,'cutbefore',cutbefore,'cutafter',cutafter);
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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330
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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331 idx = idx +1;
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Daniele Nicolodi <nicolodi@science.unitn.it>
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332 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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333 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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334 end
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Daniele Nicolodi <nicolodi@science.unitn.it>
parents:
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335