ProcLassoMLE/constructionModelesLassoMLE_interface.c

   1 #include "ioutils.h"
   2 #include "constructionModelesLassoMLE.h"
   3 #include <mex.h>
   4
   5 #include <stdio.h>
   6
   7 // nlhs, nrhs: resp. numbers of out and in parameters.
   8 // plhs: array of out parameters, each being a mxArray
   9 // plhs: array of in parameters (immutable), each being a mxArray
  10 //
  11 // MATLAB translates a call [A,B] = fun(C,D) into mexFunction(2,{A,B},2,{C,D}).
  12 // Then mxArrayS are adapted to be passed to a regular C function,
  13 // and the results are translated back to mxArrayS into plhs.
  14 void mexFunction(
  15     int nlhs,
  16     mxArray* plhs[],
  17     int nrhs,
  18     const mxArray* prhs[])
  19 {
  20     // Basic sanity checks
  21     if (nrhs!=14)
  22         mexErrMsgIdAndTxt("select:constructionModelesLassoMLE:nrhs","14 inputs required.");
  23     if (nlhs!=4)
  24         mexErrMsgIdAndTxt("select:constructionModelesLassoMLE:nlhs","4 outputs required.");
  25
  26     // Get matrices dimensions
  27     const mwSize n = mxGetDimensions(prhs[8])[0];
  28     const mwSize p = mxGetDimensions(prhs[0])[0];
  29     const mwSize m = mxGetDimensions(prhs[0])[1];
  30     const mwSize k = mxGetDimensions(prhs[0])[2];
  31     const mwSize L = mxGetNumberOfElements(prhs[7]);
  32
  33     ////////////
  34     // INPUTS //
  35     ////////////
  36
  37     // phiInit
  38     const mwSize* dimPhiInit = mxGetDimensions(prhs[0]);
  39     Real* brPhiInit = matlabToBrArray_real(mxGetPr(prhs[0]), dimPhiInit, 3);
  40
  41     // rhoInit
  42     const mwSize* dimRhoInit = mxGetDimensions(prhs[1]);
  43     Real* brRhoInit = matlabToBrArray_real(mxGetPr(prhs[1]), dimRhoInit, 3);
  44
  45     // piInit
  46     Real* piInit = mxGetPr(prhs[2]);
  47
  48     // gamInit
  49     const mwSize* dimGamInit = mxGetDimensions(prhs[3]);
  50     Real* brGamInit = matlabToBrArray_real(mxGetPr(prhs[3]), dimGamInit, 2);
  51
  52     // min number of iterations
  53     Int mini = ((Int*)mxGetData(prhs[4]))[0];
  54
  55     // max number of iterations
  56     Int maxi = ((Int*)mxGetData(prhs[5]))[0];
  57
  58     // gamma
  59     Real gamma = mxGetScalar(prhs[6]);
  60
  61     // glambda
  62     Real* glambda = mxGetPr(prhs[7]);
  63
  64     // X
  65     const mwSize* dimX = mxGetDimensions(prhs[8]);
  66     Real* brX = matlabToBrArray_real(mxGetPr(prhs[8]), dimX, 2);
  67
  68     // Y
  69     const mwSize* dimY = mxGetDimensions(prhs[9]);
  70     Real* brY = matlabToBrArray_real(mxGetPr(prhs[9]), dimY, 2);
  71
  72     //seuil
  73     Real seuil = mxGetScalar(prhs[10]);
  74
  75     // tau
  76     Real tau = mxGetScalar(prhs[11]);
  77
  78     // A1
  79     const mwSize* dimA = mxGetDimensions(prhs[12]);
  80     Int* brA1 = matlabToBrArray_int(mxGetData(prhs[12]), dimA, 3);
  81
  82     // A2
  83     Int* brA2 = matlabToBrArray_int(mxGetData(prhs[13]), dimA, 3);
  84
  85     /////////////
  86     // OUTPUTS //
  87     /////////////
  88
  89     // phi
  90     const mwSize dimPhi[] = {dimPhiInit[0], dimPhiInit[1], dimPhiInit[2], L};
  91     plhs[0] = mxCreateNumericArray(4,dimPhi,mxDOUBLE_CLASS,mxREAL);
  92     Real* phi = mxGetPr(plhs[0]);
  93
  94     // rho
  95     const mwSize dimRho[] = {dimRhoInit[0], dimRhoInit[1], dimRhoInit[2], L};
  96     plhs[1] = mxCreateNumericArray(4,dimRho,mxDOUBLE_CLASS,mxREAL);
  97     Real* rho = mxGetPr(plhs[1]);
  98
  99     // pi
 100     const mwSize dimPi[] = {k, L};
 101     plhs[2] = mxCreateNumericMatrix(dimPi[0],dimPi[1],mxDOUBLE_CLASS,mxREAL);
 102     Real* pi = mxGetPr(plhs[2]);
 103
 104     // lvraisemblance
 105     const mwSize dimLvraisemblance[] = {L, 2};
 106     plhs[3] = mxCreateNumericMatrix(L, 2, mxDOUBLE_CLASS,mxREAL);
 107     Real* lvraisemblance = mxGetPr(plhs[3]);
 108
 109     /////////////////////////////////////////
 110     // Call to constructionModelesLassoMLE //
 111     /////////////////////////////////////////
 112
 113     constructionModelesLassoMLE(
 114         brPhiInit,brRhoInit,piInit,brGamInit,mini,maxi,gamma,glambda,brX,brY,seuil,tau,brA1,brA2,
 115         phi,rho,pi,lvraisemblance,
 116         n,p,m,k,L);
 117
 118     free(brPhiInit);
 119     free(brRhoInit);
 120     free(brGamInit);
 121     free(brX);
 122     free(brY);
 123     free(brA1);
 124     free(brA2);
 125
 126     //post-processing: convert by-rows outputs to MATLAB matrices
 127     Real* mlPhi = brToMatlabArray_real(phi, dimPhi, 4);
 128     copyArray(mlPhi, phi, dimPhi[0]*dimPhi[1]*dimPhi[2]*dimPhi[3]);
 129     free(mlPhi);
 130
 131     Real* mlRho = brToMatlabArray_real(rho, dimRho, 4);
 132     copyArray(mlRho, rho, dimRho[0]*dimRho[1]*dimRho[2]*dimRho[3]);
 133     free(mlRho);
 134
 135     Real* mlPi = brToMatlabArray_real(pi, dimPi, 2);
 136     copyArray(mlPi, pi, dimPi[0]*dimPi[1]);
 137     free(mlPi);
 138
 139     Real* mlLvraisemblance = brToMatlabArray_real(lvraisemblance, dimLvraisemblance, 2);
 140     copyArray(mlLvraisemblance, lvraisemblance, dimLvraisemblance[0]*dimLvraisemblance[1]);
 141     free(mlLvraisemblance);
 142 }