Create an identifier variable
Try something like this:
Suppose your data object is called df:
cbind(paste("sd", 1:NROW(df), sep = ""), df)
If you are just moving from SAS check out the website (and books
associated with) http://r4stats.com -- it's got some tutorials on
moving from other platforms to R.
Michael
On Tue, Nov 29, 2011 at 2:48 PM, hyunjeehale <hyunjee.hale at gmail.com> wrote:
I am needing to create a new identifier variable for a data set which has no ID variable in the original file. I am basically wanting to take the count of each row and add "sd" in front of it - so it would look like so sd1 sd2 sd3 sd4 sd5 etc....... I have no idea how to do this. I am a SAS user trying to learn R. This question may have been answered previously, but I could be searching for it incorrectly. Thank you for any assistance you can provide. HyunJee -- View this message in context: http://r.789695.n4.nabble.com/Create-an-identifier-variable-tp4120548p4120548.html Sent from the R help mailing list archive at Nabble.com.
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