Calculation and plotting of the empiric AUCs

ROC=1-sapply(F, function(x) mean( YE <= x ))

xmat<-matrix(rep(YS,n),nrow=n,byrow=T) ymat<-matrix(rep(YE,m),nrow=n,byrow=F)

auc<-(length(diffmat[diffmat>0])+

nvars=NULL;aucs=NULL;ROCs=NULL

ii=! (variables %in% inside) variables=variables[ii]


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