Nothing
PRODM<-function(A,B){
C<-matrix(NA,nrow=nrow(A),ncol=ncol(A)*ncol(B))
k<-1
for(i in 1:ncol(A)){
for(j in 1:ncol(B)){
C[,k]<-A[,i]*B[,j]
k<-k+1
}
}
colnames(C)<-rep(colnames(A),each=ncol(B))
return(C)
}
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