Jose,
One way is using the paste command to concatenate strings together. Numeric
strings can easily to coerced back to numbers later.
HTH,
Roger
> a <- c("abc", 123)
> dim(a) <- c(1,2)
> b <- cbind(a, paste(a[,1], a[,2], sep=""))
> a
[,1] [,2]
[1,] "abc" "123"
> b
[,1] [,2] [,3]
[1,] "abc" "123" "abc123"
>
-----Original Message-----
From: jose Bartolomei [mailto:surfprjab@hotmail.com]
Sent: Thursday, December 16, 2004 8:07 AM
To: s-news@lists.biostat.wustl.edu
Subject: [S] add info to columns
Dear S-Plus users.
I have not found a way to add information from different columns into
another one.
For example:
Column 1 Column 2 Column 3
abc 123 abc123
How can I do that?
Thank you very much
Happy Christmas,
Jose
Research Degree Student
London School of Hygiene & Tropical Medicine
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