alr.R
alr <- function (x, ivar=ncol(x)){
.Deprecated("addLR")
if(dim(x)[2] < 2) stop("data must be of dimension greater equal 2")
x.alr <- log(x/x[, ivar])
res <- list(x.alr=x.alr[,-ivar],
varx=x[,ivar], ivar=ivar, cnames=colnames(x))
class(res) <- "alr"
invisible(res)
}