It looks to me like internally .subset2 uses `get1index()`, but this function is declared in Defn.h, which AFAIK is not part of the exported R API.
Looking at the code for `get1index()` it looks like it just loops over the (translated) names, so I guess I just do that [0]. [0]: https://github.com/r-devel/r-svn/blob/1ff1d4197495a6ee1e1d88348a03ff841fd27608/src/main/subscript.c#L226-L235 On Wed, Jun 17, 2020 at 6:11 AM Morgan Morgan <morgan.email...@gmail.com> wrote: > Hi, > > Hope you are well. > > I was wondering if there is a function at C level that is equivalent to > mtcars$carb or .subset2(mtcars, "carb"). > > If I have the index of the column then the answer would be VECTOR_ELT(df, > asInteger(idx)) but I was wondering if there is a way to do it directly > from the name of the column without having to loop over columns names to > find the index? > > Thank you > Best regards > Morgan > > [[alternative HTML version deleted]] > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > [[alternative HTML version deleted]] ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
