Accessing i'th element of a vector without using a macro
Exactly, that is what i use. I intend to do the operation using an FFI library(i't s just a proof of concept, and there well might be performance hits) If such a function doesn't exist in libR.so, then i can write one. Regards Saptarshi
On Mon, May 20, 2013 at 10:03 AM, Gabriel Becker <gmbecker at ucdavis.edu> wrote:
Saptarshi, When I need to repeatedly access data from a an R vector in C I typically just create a pointer to the data and just use that. double *xdat = REAL(x); xdat[i]; //repeat as necessary This is also displayed in 5.9.4 of the R extensions manual. Is there a reason this wouldn't work for your usecase? What exactly is it that you want to do? ~G On Mon, May 20, 2013 at 9:56 AM, Saptarshi Guha <saptarshi.guha at gmail.com> wrote:
Hello, I have a double vector, x. I can access the i'th element as REAL(x)[i] Is there a function for this? I know i can write my own, but was seeing if one already exists. I did check Rinternals.h but didn't see one. Cheers Saptarshi
______________________________________________ R-devel at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
-- Gabriel Becker Graduate Student Statistics Department University of California, Davis