try:

apply(data[,c(6:42)], 2, max)

(as stephen sefick Just mentioned...)






On Tue, Mar 17, 2009 at 2:56 AM, timbean <timbean@gmail.com> wrote:

>
> I'd like to perform some calculations across a series of columns. Is there
> an
> easy way to do so? For example, I'd like to calculate the maximum value
> from
> columns 6-42. Although I can use, say:
>
> pmax(data[,6],data[,7],data[,8], etc.), I'd prefer to be able to do
> something like
>
> pmax(data[,6:42]). Unfortunately, doing so returns 36 columns.
>
> Thanks,
> Tim
> --
> View this message in context:
> http://www.nabble.com/Calculate-across-columns-tp22549648p22549648.html
> Sent from the R help mailing list archive at Nabble.com.
>
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> PLEASE do read the posting guide
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>



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