**From:** *Lennart.Borgman@astrazeneca.com*

**Date:** Wed 18 Feb 2004 - 01:36:12 EST

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Message-id: <26D5AB9F6512D611A8610001FA7E136F032783E4@se-drc-mail4.selu.astrazeneca.net>

I have been lurking in this list a while and searching in the archives to

find out how one learns to write fast R code. One solution seems to be to

write part of the code not in R but in C. However after finding a benchmark

article (http://www.sciviews.org/other/benchmark.htm) I have been more

interested in making the R code itself more efficient. I would like to find

more info about this. I have tried to mail the contact person for the

benchmark, but I have so recieved no reply.

I am not an R programmer (or statistican) so I do not know R well. I am

looking for some advice about writing fast R code. What about the different

data types for example? Is there some good place to start to look for more

info about this?

Thanks for any pointers

Lennart

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**Next message:**Maurice McHugh: "[R] Comparison of % variance explained by each PC before AND after rotation"**Previous message:**Deepayan Sarkar: "Re: [R] Lattice graphics and strip function"**Next in thread:**Prof Brian Ripley: "Re: [R] How to write efficient R code"**Reply:**Prof Brian Ripley: "Re: [R] How to write efficient R code"**Reply:**Tom Blackwell: "Re: [R] How to write efficient R code"**Maybe reply:**Liaw, Andy: "RE: [R] How to write efficient R code"**Reply:**Ko-Kang Kevin Wang: "RE: [R] How to write efficient R code"**Maybe reply:**Tom Blackwell: "Re: [R] How to write efficient R code"**Reply:**Hadley Wickham: "Re: [R] How to write efficient R code"**Reply:**Remington, Richard: "Re: [R] How to write efficient R code"**Maybe reply:**Liaw, Andy: "RE: [R] How to write efficient R code"**Maybe reply:**Liaw, Andy: "RE: [R] How to write efficient R code"

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