X-Git-Url: https://git.auder.net/?p=valse.git;a=blobdiff_plain;f=pkg%2FR%2FconstructionModelesLassoMLE.R;h=3967dfcf623892689d186b6ab7ee8979ddde35ed;hp=a49529c4a305aa3573662577b3be5018ee73c75d;hb=e32621012b1660204434a56acc8cf73eac42f477;hpb=086cf723817b690dc368d2f11b7b9e88d183e804 diff --git a/pkg/R/constructionModelesLassoMLE.R b/pkg/R/constructionModelesLassoMLE.R deleted file mode 100644 index a49529c..0000000 --- a/pkg/R/constructionModelesLassoMLE.R +++ /dev/null @@ -1,89 +0,0 @@ -#' constructionModelesLassoMLE -#' -#' TODO: description -#' -#' @param ... -#' -#' @return ... -#' -#' export -constructionModelesLassoMLE = function(phiInit, rhoInit, piInit, gamInit, mini, maxi, - gamma, X, Y, thresh, tau, S, ncores=3, artefact = 1e3, verbose=FALSE) -{ - if (ncores > 1) - { - cl = parallel::makeCluster(ncores) - parallel::clusterExport( cl, envir=environment(), - varlist=c("phiInit","rhoInit","gamInit","mini","maxi","gamma","X","Y","thresh", - "tau","S","ncores","verbose") ) - } - - # Individual model computation - computeAtLambda <- function(lambda) - { - if (ncores > 1) - require("valse") #// nodes start with an empty 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 = S[[lambda]]$selected - # col.sel = which(colSums(sel.lambda)!=0) #if boolean matrix - col.sel <- which( sapply(sel.lambda,length) > 0 ) #if list of selected vars - - if (length(col.sel) == 0) - {return (NULL)} else { - - # lambda == 0 because we compute the EMV: no penalization here - res_EM = EMGLLF(phiInit[col.sel,,],rhoInit,piInit,gamInit,mini,maxi,gamma,0, - X[,col.sel],Y,tau) - - # Eval dimension from the result + selected - phiLambda2 = res_EM$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]])## je confonds un peu ligne et colonne : est-ce dans le bon sens ? - ## moi pour la dimension, j'aurai juste mis length(unlist(sel.lambda)) mais je sais pas si c'est rapide - if (length(b) > 0) - phiLambda[j,b,] = 0.0 - dimension = dimension + sum(sel.lambda[[j]]!=0) - } - - # Computation of the loglikelihood - densite = vector("double",n) - for (r in 1:k) - { - delta = (Y%*%rhoLambda[,,r] - (X[, col.sel]%*%phiLambda[col.sel,,r]))/artefact - print(max(delta)) - densite = densite + piLambda[r] * - det(rhoLambda[,,r])/(sqrt(2*base::pi))^m * exp(-tcrossprod(delta)/2.0) - } - llhLambda = c( sum(artefact^2 * log(densite)), (dimension+m+1)*k-1 ) - list("phi"= phiLambda, "rho"= rhoLambda, "pi"= piLambda, "llh" = llhLambda) - } - } - - # For each lambda, computation of the parameters - out = - if (ncores > 1) - parLapply(cl, 1:length(S), computeAtLambda) - else - lapply(1:length(S), computeAtLambda) - - if (ncores > 1) - parallel::stopCluster(cl) - - out -}