prepare structure for R package
[valse.git] / ProcLassoMLE / constructionModelesLassoMLE.c
diff --git a/ProcLassoMLE/constructionModelesLassoMLE.c b/ProcLassoMLE/constructionModelesLassoMLE.c
deleted file mode 100644 (file)
index bcbfd3c..0000000
+++ /dev/null
@@ -1,218 +0,0 @@
-#include "EMGLLF.h"
-#include "constructionModelesLassoMLE.h"
-#include <gsl/gsl_linalg.h>
-#include <omp.h>
-#include "omp_num_threads.h"
-
-// TODO: comment on constructionModelesLassoMLE purpose
-void constructionModelesLassoMLE(
-       // IN parameters 
-       const Real* phiInit, // parametre initial de moyenne renormalisé
-       const Real* rhoInit, // parametre initial de variance renormalisé
-       const Real* piInit,  // parametre initial des proportions
-       const Real* gamInit, // paramètre initial des probabilités a posteriori de chaque échantillon
-       Int mini,        // nombre minimal d'itérations dans l'algorithme EM   
-       Int maxi,        // nombre maximal d'itérations dans l'algorithme EM
-       Real gamma,    // valeur de gamma : puissance des proportions dans la pénalisation pour un Lasso adaptatif
-       const Real* glambda, // valeur des paramètres de régularisation du Lasso
-       const Real* X,       // régresseurs
-       const Real* Y,       // réponse
-       Real seuil,    // seuil pour prendre en compte une variable
-       Real tau,      // seuil pour accepter la convergence
-       const Int* A1,         // matrice des coefficients des parametres selectionnes
-       const Int* A2,         // matrice des coefficients des parametres non selectionnes
-       // OUT parameters
-       Real* phi,            // estimateur ainsi calculé par le Lasso
-    Real* rho,            // estimateur ainsi calculé par le Lasso
-       Real* pi,             // estimateur ainsi calculé par le Lasso
-    Real* lvraisemblance, // estimateur ainsi calculé par le Lasso
-       // additional size parameters
-       mwSize n,                 // taille de l'echantillon                
-       mwSize p,                 // nombre de covariables
-       mwSize m,                 // taille de Y (multivarié)
-       mwSize k,                 // nombre de composantes
-       mwSize L)                 // taille de glambda
-{
-       //preparation: phi = 0
-       for (mwSize u=0; u<p*m*k*L; u++)
-               phi[u] = 0.0;
-       
-       //initiate parallel section
-       mwSize lambdaIndex;
-       omp_set_num_threads(OMP_NUM_THREADS);
-       #pragma omp parallel default(shared) private(lambdaIndex)
-       {
-       #pragma omp for schedule(dynamic,CHUNK_SIZE) nowait
-       for (lambdaIndex=0; lambdaIndex<L; lambdaIndex++)
-       {
-               //~ a = A1(:,1,lambdaIndex);
-               //~ a(a==0) = [];
-               Int* a = (Int*)malloc(p*sizeof(Int));
-               mwSize lengthA = 0;
-               for (mwSize j=0; j<p; j++)
-               {
-                       if (A1[j*(m+1)*L+0*L+lambdaIndex] != 0)
-                               a[lengthA++] = A1[j*(m+1)*L+0*L+lambdaIndex] - 1;
-               }
-               if (lengthA == 0)
-                       continue;
-               
-               //Xa = X(:,a)
-               Real* Xa = (Real*)malloc(n*lengthA*sizeof(Real));
-               for (mwSize i=0; i<n; i++)
-               {
-                       for (mwSize j=0; j<lengthA; j++)
-                               Xa[i*lengthA+j] = X[i*p+a[j]];
-               }
-               
-               //phia = phiInit(a,:,:)
-               Real* phia = (Real*)malloc(lengthA*m*k*sizeof(Real));
-               for (mwSize j=0; j<lengthA; j++)
-               {
-                       for (mwSize mm=0; mm<m; mm++)
-                       {
-                               for (mwSize r=0; r<k; r++)
-                                       phia[j*m*k+mm*k+r] = phiInit[a[j]*m*k+mm*k+r];
-                       }
-               }
-               
-               //[phiLambda,rhoLambda,piLambda,~,~] = EMGLLF(...
-               //      phiInit(a,:,:),rhoInit,piInit,gamInit,mini,maxi,gamma,0,X(:,a),Y,tau);
-               Real* phiLambda = (Real*)malloc(lengthA*m*k*sizeof(Real));
-               Real* rhoLambda = (Real*)malloc(m*m*k*sizeof(Real));
-               Real* piLambda = (Real*)malloc(k*sizeof(Real));
-               Real* LLF = (Real*)malloc((maxi+1)*sizeof(Real));
-               Real* S = (Real*)malloc(lengthA*m*k*sizeof(Real));
-               EMGLLF(phia,rhoInit,piInit,gamInit,mini,maxi,gamma,0.0,Xa,Y,tau,
-                       phiLambda,rhoLambda,piLambda,LLF,S,
-                       n,lengthA,m,k);
-               free(Xa);
-               free(phia);
-               free(LLF);
-               free(S);
-               
-               //~ for j=1:length(a)
-                       //~ phi(a(j),:,:,lambdaIndex) = phiLambda(j,:,:);
-               //~ end
-               for (mwSize j=0; j<lengthA; j++)
-               {
-                       for (mwSize mm=0; mm<m; mm++)
-                       {
-                               for (mwSize r=0; r<k; r++)
-                                       phi[a[j]*m*k*L+mm*k*L+r*L+lambdaIndex] = phiLambda[j*m*k+mm*k+r];
-                       }
-               }
-               free(phiLambda);
-               //~ rho(:,:,:,lambdaIndex) = rhoLambda;
-               for (mwSize u=0; u<m; u++)
-               {
-                       for (mwSize v=0; v<m; v++)
-                       {
-                               for (mwSize r=0; r<k; r++)
-                                       rho[u*m*k*L+v*k*L+r*L+lambdaIndex] = rhoLambda[u*m*k+v*k+r];
-                       }
-               }
-               free(rhoLambda);
-               //~ pi(:,lambdaIndex) = piLambda;
-               for (mwSize r=0; r<k; r++)
-                       pi[r*L+lambdaIndex] = piLambda[r];
-               free(piLambda);
-               
-               mwSize dimension = 0;
-               Int* b = (Int*)malloc(m*sizeof(Int));
-               for (mwSize j=0; j<p; j++)
-               {
-                       //~ b = A2(j,2:end,lambdaIndex);
-                       //~ b(b==0) = [];
-                       mwSize lengthB = 0;
-                       for (mwSize mm=0; mm<m; mm++)
-                       {
-                               if (A2[j*(m+1)*L+(mm+1)*L+lambdaIndex] != 0)
-                                       b[lengthB++] = A2[j*(m+1)*L+(mm+1)*L+lambdaIndex] - 1;
-                       }
-                       //~ if length(b) > 0
-                               //~ phi(A2(j,1,lambdaIndex),b,:,lambdaIndex) = 0.0;
-                       //~ end
-                       if (lengthB > 0)
-                       {
-                               for (mwSize mm=0; mm<lengthB; mm++)
-                               {
-                                       for (mwSize r=0; r<k; r++)
-                                               phi[(A2[j*(m+1)*L+0*L+lambdaIndex]-1)*m*k*L + b[mm]*k*L + r*L + lambdaIndex] = 0.0;
-                               }
-                       }
-                       
-                       //~ c = A1(j,2:end,lambdaIndex);
-                       //~ c(c==0) = [];
-                       //~ dimension = dimension + length(c);
-                       for (mwSize mm=0; mm<m; mm++)
-                       {
-                               if (A1[j*(m+1)*L+(mm+1)*L+lambdaIndex] != 0)
-                                       dimension++;
-                       }
-               }
-               free(b);
-               
-               int signum;
-               Real* densite = (Real*)calloc(L*n,sizeof(Real));
-               Real sumLogDensit = 0.0;
-               gsl_matrix* matrix = gsl_matrix_alloc(m, m);
-               gsl_permutation* permutation = gsl_permutation_alloc(m);
-               Real* YiRhoR = (Real*)malloc(m*sizeof(Real));
-               Real* XiPhiR = (Real*)malloc(m*sizeof(Real));
-               for (mwSize i=0; i<n; i++)
-               {
-                       //~ for r=1:k
-                               //~ delta = Y(i,:)*rho(:,:,r,lambdaIndex) - (X(i,a)*(phi(a,:,r,lambdaIndex)));
-                               //~ densite(i,lambdaIndex) = densite(i,lambdaIndex) +...
-                                       //~ pi(r,lambdaIndex)*det(rho(:,:,r,lambdaIndex))/(sqrt(2*PI))^m*exp(-dot(delta,delta)/2.0);
-                       //~ end
-                       for (mwSize r=0; r<k; r++)
-                       {
-                               //compute det(rho(:,:,r,lambdaIndex)) [TODO: avoid re-computations]
-                               for (mwSize u=0; u<m; u++)
-                               {
-                                       for (mwSize v=0; v<m; v++)
-                                               matrix->data[u*m+v] = rho[u*m*k*L+v*k*L+r*L+lambdaIndex];
-                               }
-                               gsl_linalg_LU_decomp(matrix, permutation, &signum);
-                               Real detRhoR = gsl_linalg_LU_det(matrix, signum);
-                               
-                               //compute Y(i,:)*rho(:,:,r,lambdaIndex)
-                               for (mwSize u=0; u<m; u++)
-                               {
-                                       YiRhoR[u] = 0.0;
-                                       for (mwSize v=0; v<m; v++)
-                                               YiRhoR[u] += Y[i*m+v] * rho[v*m*k*L+u*k*L+r*L+lambdaIndex];
-                               }
-                               
-                               //compute X(i,a)*phi(a,:,r,lambdaIndex)
-                               for (mwSize u=0; u<m; u++)
-                               {
-                                       XiPhiR[u] = 0.0;
-                                       for (mwSize v=0; v<lengthA; v++)
-                                               XiPhiR[u] += X[i*p+a[v]] * phi[a[v]*m*k*L+u*k*L+r*L+lambdaIndex];
-                               }
-                // On peut remplacer X par Xa dans ce dernier calcul, mais je ne sais pas si c'est intéressant ...
-                               
-                               // compute dotProduct < delta . delta >
-                               Real dotProduct = 0.0;
-                               for (mwSize u=0; u<m; u++)
-                                       dotProduct += (YiRhoR[u]-XiPhiR[u]) * (YiRhoR[u]-XiPhiR[u]);
-                               
-                               densite[lambdaIndex*n+i] += (pi[r*L+lambdaIndex]*detRhoR/pow(sqrt(2.0*M_PI),m))*exp(-dotProduct/2.0);
-                       }                       
-                       sumLogDensit += log(densite[lambdaIndex*n+i]);
-               }
-               lvraisemblance[lambdaIndex*2+0] = sumLogDensit;
-               lvraisemblance[lambdaIndex*2+1] = (dimension+m+1)*k-1;
-       
-               free(a);
-               free(YiRhoR);
-               free(XiPhiR);
-               free(densite);
-               gsl_matrix_free(matrix);
-               gsl_permutation_free(permutation);
-       }
-       }
-}