From: emilie <emilie@devijver.org>
Date: Thu, 16 Mar 2017 15:28:31 +0000 (+0100)
Subject: without parallel for selectiontotale.R (problem with parallel)
X-Git-Url: https://git.auder.net/doc/html/index.css?a=commitdiff_plain;h=12381c92accfc0b7bedc3ce1c338856df1838a73;p=valse.git

without parallel for selectiontotale.R (problem with parallel)
---

diff --git a/R/selectiontotale.R b/R/selectiontotale.R
index 1690386..5b0112c 100644
--- a/R/selectiontotale.R
+++ b/R/selectiontotale.R
@@ -1,12 +1,13 @@
 #Return a list of outputs, for each lambda in grid: selected,Rho,Pi
-selectiontotale = function(phiInit,rhoInit,piInit,gamInit,mini,maxi,gamma,glambda,X,Y,thresh,tau){
-  require(parallel)
-    cl = parallel::makeCluster( parallel::detectCores() / 4 ) # <-- ça devrait être un argument
+selectiontotale = function(phiInit,rhoInit,piInit,gamInit,mini,maxi,gamma,glambda,X,Y,thresh,tau, parallel = FALSE){
+  if (parallel) {
+    require(parallel)
+    cl = parallel::makeCluster( parallel::detectCores() / 4) # <-- ça devrait être un argument
     parallel::clusterExport(cl=cl,
                             varlist=c("phiInit","rhoInit","gamInit","mini","maxi","glambda","X","Y","thresh","tau"),
                             envir=environment())
     #Pour chaque lambda de la grille, on calcule les coefficients
-    out = parLapply( 1:length(glambda), function(lambdaindex)
+    out = parLapply(cl,  1:length(glambda), function(lambdaIndex)
     {
       params = 
         EMGLLF(phiInit,rhoInit,piInit,gamInit,mini,maxi,gamma,glambda[lambdaIndex],X,Y,tau)
@@ -23,4 +24,27 @@ selectiontotale = function(phiInit,rhoInit,piInit,gamInit,mini,maxi,gamma,glambd
       list("selected"=selectedVariables,"Rho"=params$Rho,"Pi"=params$Pi)
     })
     parallel::stopCluster(cl)
-  }
\ No newline at end of file
+  }
+  else {
+    selectedVariables = list()
+    Rho = list()
+    Pi = list()
+    #Pour chaque lambda de la grille, on calcule les coefficients
+    for (lambdaIndex in 1:length(glambda)){
+      print(lambdaIndex)
+      params = 
+        EMGLLF(phiInit,rhoInit,piInit,gamInit,mini,maxi,gamma,glambda[lambdaIndex],X,Y,tau)
+      p = dim(phiInit)[1]
+      m = dim(phiInit)[2]
+      #selectedVariables: list where element j contains vector of selected variables in [1,m]
+      selectedVariables[[lambdaIndex]] = lapply(1:p, function(j) {
+        #from boolean matrix mxk of selected variables obtain the corresponding boolean m-vector,
+        #and finally return the corresponding indices
+        seq_len(m)[ apply( abs(params$phi[j,,]) > thresh, 1, any ) ]
+      })
+      Rho[[lambdaIndex]] = params$Rho
+      Pi[[lambdaIndex]] = params$Pi
+    }
+    list("selected"=selectedVariables,"Rho"=Rho,"Pi"=Pi)
+  }
+}
\ No newline at end of file