On Fri, Oct 8, 2010 at 5:33 AM, Dirk Eddelbuettel <[email protected]> wrote: > > On 8 October 2010 at 04:28, Christian Gunning wrote: > | Yes, I've used this successfully. I have run into trouble extracting > | elements of length>1 from lists with variable-length elements, e.g. > | _mylist = list(a=1, b=1:3), mylist["a"] works but mylist["b"] is > | squirrely. > > Please send a reproducible test case. I use the same approach a lot and have > not had issues.
Ah. I see now that, in the example above, mylist["a"] is a 1-length NumericVector and (mylist["b"])[1] is a double. My confustion was using (mylist["b"])[1] in places that expected a NumericVector (like Rf_PrintValue() or return() ), or trying to pull the single element into a NumericVector: NumericVector i(mylist["b]); which, of course, initializes a NumericVector of length mylist["b"]. Thanks, Christian _______________________________________________ Rcpp-devel mailing list [email protected] https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
