X-Git-Url: https://git.auder.net/?p=valse.git;a=blobdiff_plain;f=pkg%2FR%2FconstructionModelesLassoMLE.R;h=3967dfcf623892689d186b6ab7ee8979ddde35ed;hp=67fc1fcb99b377aeed743550fe8ca263b07663fc;hb=e32621012b1660204434a56acc8cf73eac42f477;hpb=0eb161e3f3d018bce7d98fc85622d14910f89d43 diff --git a/pkg/R/constructionModelesLassoMLE.R b/pkg/R/constructionModelesLassoMLE.R deleted file mode 100644 index 67fc1fc..0000000 --- a/pkg/R/constructionModelesLassoMLE.R +++ /dev/null @@ -1,86 +0,0 @@ -#' constructionModelesLassoMLE -#' -#' TODO: description -#' -#' @param ... -#' -#' @return ... -#' -#' export -constructionModelesLassoMLE = function(phiInit, rhoInit, piInit, gamInit, mini, maxi, - gamma, X, Y, seuil, tau, selected, ncores=3, verbose=FALSE) -{ - if (ncores > 1) - { - cl = parallel::makeCluster(ncores) - parallel::clusterExport( cl, envir=environment(), - varlist=c("phiInit","rhoInit","gamInit","mini","maxi","gamma","X","Y","seuil", - "tau","selected","ncores","verbose") ) - } - - # Individual model computation - computeAtLambda <- function(lambda) - { - if (ncores > 1) - require("valse") #// nodes start with an ampty environment - - if (verbose) - print(paste("Computations for lambda=",lambda)) - - n = dim(X)[1] - p = dim(phiInit)[1] - m = dim(phiInit)[2] - k = dim(phiInit)[3] - - sel.lambda = selected[[lambda]] -# col.sel = which(colSums(sel.lambda)!=0) #if boolean matrix - col.sel <- which( sapply(sel.lambda,length) > 0 ) #if list of selected vars - - if (length(col.sel) == 0) - return (NULL) - - # lambda == 0 because we compute the EMV: no penalization here - res = EMGLLF(phiInit[col.sel,,],rhoInit,piInit,gamInit,mini,maxi,gamma,0, - X[,col.sel],Y,tau) - - # Eval dimension from the result + selected - phiLambda2 = res_EM$phi - rhoLambda = res_EM$rho - piLambda = res_EM$pi - phiLambda = array(0, dim = c(p,m,k)) - for (j in seq_along(col.sel)) - phiLambda[col.sel[j],,] = phiLambda2[j,,] - - dimension = 0 - for (j in 1:p) - { - b = setdiff(1:m, sel.lambda[,j]) - if (length(b) > 0) - phiLambda[j,b,] = 0.0 - dimension = dimension + sum(sel.lambda[,j]!=0) - } - - # on veut calculer la vraisemblance avec toutes nos estimations - densite = vector("double",n) - for (r in 1:k) - { - delta = Y%*%rhoLambda[,,r] - (X[, col.sel]%*%phiLambda[col.sel,,r]) - densite = densite + piLambda[r] * - det(rhoLambda[,,r])/(sqrt(2*base::pi))^m * exp(-tcrossprod(delta)/2.0) - } - llhLambda = c( sum(log(densite)), (dimension+m+1)*k-1 ) - list("phi"= phiLambda, "rho"= rhoLambda, "pi"= piLambda, "llh" = llhLambda) - } - - #Pour chaque lambda de la grille, on calcule les coefficients - out = - if (ncores > 1) - parLapply(cl, glambda, computeAtLambda) - else - lapply(glambda, computeAtLambda) - - if (ncores > 1) - parallel::stopCluster(cl) - - out -}