[R] Create an identifier variable

R. Michael Weylandt michael.weylandt at gmail.com
Tue Nov 29 23:51:48 CET 2011

Also, this blog has implementations of many common subroutines in both
SAS and R so you can learn "translations" between the two.

Hope it helps,


On Tue, Nov 29, 2011 at 5:35 PM, R. Michael Weylandt
<michael.weylandt at gmail.com> wrote:
> 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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