Bic <-
function(f,Y=NULL,nbr_par=NULL,Xquali=NULL,Xquanti=NULL,K=length(unique(Y))) {
nbr_par<-0
if(!is.null(Xquali)){
p<-ncol(Xquali)
for (j in 1:p) {
nbr_par<-nbr_par+length(unique(Xquali[,j])) -1
}
nbr_par<-nbr_par*K
}
if(!is.null(Xquanti)){
p<-ncol(Xquanti)
nbr_par<- K*(p*(p+1)/2+p+1)-1 + nbr_par
}
return(-2*sum(log(f)) + nbr_par*log(length(Y)))
}
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