1 | #include "emix.h" |
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2 | |
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3 | namespace bdm{ |
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4 | |
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5 | void emix::set_parameters ( const vec &w0, const Array<epdf*> &Coms0, bool copy ) { |
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6 | w = w0/sum ( w0 ); |
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7 | dim = Coms0(0)->dimension(); |
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8 | int i; |
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9 | for ( i=0;i<w.length();i++ ) { |
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10 | it_assert_debug ( dim== ( Coms0 ( i )->dimension() ),"Component sizes do not match!" ); |
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11 | } |
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12 | if ( copy ) { |
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13 | Coms.set_length(Coms0.length()); |
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14 | for ( i=0;i<w.length();i++ ) {it_error("Not imp..."); |
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15 | *Coms ( i ) =*Coms0 ( i );} |
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16 | destroyComs=true; |
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17 | } |
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18 | else { |
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19 | Coms = Coms0; |
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20 | destroyComs=false; |
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21 | } |
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22 | } |
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23 | |
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24 | vec emix::sample() const { |
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25 | //Sample which component |
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26 | vec cumDist = cumsum ( w ); |
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27 | double u0; |
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28 | #pragma omp critical |
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29 | u0 = UniRNG.sample(); |
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30 | |
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31 | int i=0; |
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32 | while ( ( cumDist ( i ) <u0 ) && ( i< ( w.length()-1 ) ) ) {i++;} |
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33 | |
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34 | return Coms ( i )->sample(); |
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35 | } |
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36 | |
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37 | emix* emix::marginal(const RV &rv) const{ |
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38 | it_assert_debug(isnamed(), "rvs are not assigned"); |
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39 | |
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40 | Array<epdf*> Cn(Coms.length()); |
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41 | for(int i=0;i<Coms.length();i++){Cn(i)=Coms(i)->marginal(rv);} |
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42 | emix* tmp = new emix(); |
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43 | tmp->set_parameters(w,Cn,false); |
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44 | tmp->ownComs(); |
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45 | return tmp; |
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46 | } |
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47 | |
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48 | mratio* emix::condition(const RV &rv) const{ |
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49 | it_assert_debug(isnamed(), "rvs are not assigned"); |
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50 | return new mratio(this,rv); |
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51 | }; |
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52 | |
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53 | } |
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54 | // mprod::mprod ( Array<mpdf*> mFacs, bool overlap) : mpdf ( RV(), RV() ), n ( mFacs.length() ), epdfs ( n ), mpdfs ( mFacs ), rvinds ( n ), rvcinrv ( n ), irvcs_rvc ( n ) { |
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55 | // int i; |
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56 | // bool rvaddok; |
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57 | // // Create rv |
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58 | // for ( i = 0;i < n;i++ ) { |
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59 | // rvaddok=rv.add ( mpdfs ( i )->_rv() ); //add rv to common rvs. |
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60 | // // If rvaddok==false, mpdfs overlap => assert error. |
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61 | // it_assert_debug(rvaddok||overlap,"mprod::mprod() input mpdfs overlap in rv!"); |
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62 | // epdfs ( i ) = & ( mpdfs ( i )->posterior() ); // add pointer to epdf |
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63 | // }; |
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64 | // // Create rvc |
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65 | // for ( i = 0;i < n;i++ ) { |
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66 | // rvc.add ( mpdfs ( i )->_rvc().subt ( rv ) ); //add rv to common rvs. |
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67 | // }; |
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68 | // |
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69 | // // independent = true; |
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70 | // //test rvc of mpdfs and fill rvinds |
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71 | // for ( i = 0;i < n;i++ ) { |
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72 | // // find ith rv in common rv |
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73 | // rvsinrv ( i ) = mpdfs ( i )->_rv().dataind ( rv ); |
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74 | // // find ith rvc in common rv |
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75 | // rvcinrv ( i ) = mpdfs ( i )->_rvc().dataind ( rv ); |
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76 | // // find ith rvc in common rv |
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77 | // irvcs_rvc ( i ) = mpdfs ( i )->_rvc().dataind ( rvc ); |
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78 | // // |
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79 | // /* if ( rvcinrv ( i ).length() >0 ) {independent = false;} |
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80 | // if ( irvcs_rvc ( i ).length() >0 ) {independent = false;}*/ |
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81 | // } |
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82 | // }; |
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