[Rd] Subsetting a vector in C
sdavis2 at mail.nih.gov
Wed Nov 1 13:48:07 CET 2006
I have a pretty simple question. I have an array of REALSXP allocated as:
rsp = allocVector(REALSXP,n)
and I simply want to pass subsets of rsp of size q (q<<n), for example, to an
R function in C. Is there a way to subset rsp without creating a new REALSXP
vector and copying the values for subsetting into it and then passing it to
the function? I'm looking for the R equivalent of rsp[1:q], but in C under
the R API.
A pointer to source code in the R distribution would be quite helpful, as I
haven't found one on my own (at least not one that I recognized as such).
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