Nothing
ResamplelogLik <-
function(xx, D.full, glm.family, nperm.used, covars, use.permMat, permMat, snowfall.args, snowfall.seed)
{
# Anzahl von Patienten/Stichproben
N.Subjects<-ncol(xx)
# Anzahl von Responsevariablen
N.vars<-nrow(xx)
N.covars<-length(covars)
ord.perm<-NULL
res.perm.tmp<-matrix(NA, nrow=N.vars, ncol=N.covars)
res.perm.tmp2<-vector("list", nperm.used)
terms<-colnames(D.full)
# Spalten der Designmatrix auf die adjustiert werden soll
D.var.adjust<-cbind(D.full[, !(terms %in% covars)])
# Spalten der Designmatrix die permutiert werden sollen
D.var.perm<-cbind(D.full[, (terms %in% covars)])
colnames(D.var.perm)<-covars
# paralleles Rechnen
do.call("sfInit", snowfall.args)
sfwrapper.dev1<-function(i) {
# Permutation erzeugen
if(i==nperm.used) {
ord<-1:N.Subjects
} else {
ord<-sample(ord.perm, N.Subjects)
}
# <<- Objekt wird global (globale Variable), kann dann beschrieben werden, sonst (mit <-) wird das Objekt kopiert
D.full.perm<-cbind(D.var.adjust, D.var.perm[ord, covars])
res.perm.tmp<<-varwiselogLik(xx=xx, D=D.full.perm, glm.family=glm.family)
return(res.perm.tmp)
}
sfwrapper.dev2<-function(i) {
# alle Permutationen
ord<-permMat[, i]
D.full.perm<-cbind(D.var.adjust, D.var.perm[ord, covars])
res.perm.tmp<<-varwiselogLik(xx=xx, D=D.full.perm, glm.family=glm.family)
return(res.perm.tmp)
}
if(snowfall.args$parallel) {
# Eingabevariablen und Ausgabevariablen
sfExport("D.var.adjust", "D.var.perm", "xx", "glm.family", "ord.perm", "N.Subjects", "N.covars", "covars", "res.perm.tmp")
# Zufallszahlengenerator
sfClusterSetupRNG(seed=snowfall.seed)
}
# zufaellig ausgewaehlte Permutationen werden verwendet
if(use.permMat == 0) {
ord.perm<-1:N.Subjects
res.perm.tmp2<-sfLapply(1:nperm.used, sfwrapper.dev1)
}
# alle moeglichen Permutationen werden verwendet
if(use.permMat == 1) {
res.perm.tmp2<-sfLapply(1:nperm.used, sfwrapper.dev2)
}
sfStop()
return(res.perm.tmp2)
}
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