Without reaching out to another package in R, I wonder what the best way is to 
speed enhance the following toy example? Over the years I have become very 
comfortable with the family of apply functions and generally not good at 
finding an improvement for speed.

This toy example is small, but my real data has many millions of rows and the 
same operations is repeated many times and so finding a less expensive 
alternative would be helpful.

mm <- matrix(rnorm(100), ncol = 10)
rn <- apply(mm, 1, prod)

        [[alternative HTML version deleted]]

______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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.

Reply via email to