Hi, I have the following data and I would like to delete douple names, it is almost similar to SAS PROC SORT nodupkey! Is there any function in R does this? x1 <- rnorm(11,5,1) x2 <- runif(11,0,1) nam <-paste("A", c(1:4,4,5:9,9), sep=".") mydata <- data.frame(x1,x2) crownames(mydata) <- nam Many thanks in advance, Amor
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