[R] Why no colSDs etc

[ripley@stats.ox.ac.uk]

Because colMeans in used a lot in S programming, and I found only one
example of colSDs.

It's easy to use apply, but we added internal code for the commonest
cases.

On Fri, 15 Nov 2002, Philip Rhoades wrote:

> Hi people,
>
> If there is a fn "colMeans" why isn't there a "colSDs" etc
>
> Thanks,
>
> Phil.
> --
> Philip Rhoades
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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
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