[R] parallelized version of "by" and "ave"
David Winsemius
dwinsemius at comcast.net
Mon Dec 24 21:06:31 CET 2012
'split' works on vectors , too.
--
David.
Sent from my iPhone
On Dec 24, 2012, at 10:25 AM, ivo welch <ivo.welch at gmail.com> wrote:
> Dear R experts---
>
> Has anyone written parallel versions of "by" (i.e., mcby) and "ave"
> (i.e. mcave) ? I did ask a question like this a year ago, and then
> the answer was no.
>
> for those who are googling the group for the answer to this question,
> in the meantime, the poor man's version of "by" is mclapply( split(
> ds, factor ), FUN )
>
> I don't know the poor man's version of "ave".
>
> sincerely, /iaw
> ----
> Ivo Welch (ivo.welch at gmail.com)
> http://www.ivo-welch.info/
>
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