On Thu, Apr 15, 2010 at 1:16 AM, Chuck <vijay.n...@gmail.com> wrote:
> Depending on the size of the dataframe and the operations you are
> trying to perform, aggregate or ddply may be better. In the function
> below, df has the same structure as your dataframe.
Current version of plyr:
agg ddply
X10 0.005 0.007
X100 0.007 0.026
X1000 0.086 0.248
X10000 0.577 3.136
X1e.05 4.493 44.147
Development version of plyr:
agg ddply
X10 0.003 0.005
X100 0.007 0.007
X1000 0.042 0.044
X10000 0.410 0.443
X1e.05 4.479 4.237
So there are some big speed improvements in the works.
Hadley
--
Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University
http://had.co.nz/
______________________________________________
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.
