On 7/28/2006 7:53 AM, [EMAIL PROTECTED] wrote:
> Full_Name: Philip Kensche
> Version: 2.3.0
This version is obsolete, but the error does occur in the current R-patched.
> OS: Redhat Linux
> Submission from: (NULL) (131.174.88.204)
>
>
> Try this:
>
> --
> x <- data.frame(the.first.column=c("A"
Full_Name: Philip Kensche
Version: 2.3.0
OS: Redhat Linux
Submission from: (NULL) (131.174.88.204)
Try this:
--
x <- data.frame(the.first.column=c("A"), the.second.column=c("b"),
the.third.column=c("d"), and.many.more.columns=c("e"))
by(x, paste(x$the.first.column, x$the.second.column, x$and.ma