On Mon, Dec 24, 2012 at 1:25 PM, ivo welch <ivo.we...@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". >
For ave, just parallelize the lapply in this (taken from the ave source): split(x, g) <- lapply(spllit(x, g), FUN) -- Statistics & Software Consulting GKX Group, GKX Associates Inc. tel: 1-877-GKX-GROUP email: ggrothendieck at gmail.com ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
