On Sat, Apr 23, 2011 at 6:25 AM, Shuguang Sun <shugu...@gmail.com> wrote: > Dear R, > > I'm doing some simulation work and it takes me a lot of time to do it > in R. So I try to implement it in C code, but I want to use some R > functions directly for my lazy and the robustness of code. For > example, I will use lm and nlm in my program. How could I use R's lm > and nlm function directly? I thinks these functions are not included > in the R's include directory. Do I need to get full R's source first? > If I have get all R's source, is it enough that I only include the > source file for function lm or nlm? > > system: > Windows XP > R 2.13.0 > Rtools 2.13 > >
Before moving to C, try replacing lm with the faster lm.fit (see ?lm.fit) and see if that gives you sufficient speedup for your needs. -- 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.
