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dfsan
1998 Dec 15
1
No subject
Dear friends. This is again a very simple question, and I hope you will accept it. I have a dataset with variables in columns all with their names. Now I want to add a column indicating simply identity of patients, numbered according to row. There are 34 rows.
So I did:
>ID <- c(1:34)
but was not allowed to
>Ptt <- cbind(patients,ID)
and was informed that
>Error: names attribute