[R] tapply slow?

[Meinhard Ploner]

If I call the function tapply

tapply(x, fact, sum)

with arguments of length 500000 the function works very slow.
Is there an alternative to get the same results?
The factor has about 100000 levels.

thanks
Meinhard Ploner



ps
version:
platform powerpc-apple-darwin5.3
arch     powerpc
os       darwin5.3
system   powerpc, darwin5.3
status
major    1
minor    4.0
year     2001
month    12
day      19
language R

-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._