Examine carefully the following lines of R code. X<-scale(x=X, center=TRUE, scale=FALSE) S<-svd (x=X) S$d 2/(nrow(X)-1) S$v pairs (S$u\*\%diag(S$d)) Briefly explain what the code is about, and what each line of code is doing. If there is output, say what would the output be.
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