[Rcpp-devel] Using loess() from Rcpp
edd at debian.org
Sat Apr 3 06:25:43 CEST 2010
On 1 April 2010 at 17:04, Davor Cubranic wrote:
| Has anyone here used R curve-fitting from Rcpp? Like loess(), for example?
| Reading the R code, after a couple of layers of preliminaries to extract all
| the required parameters, it ends up in C (loess_raw) and Fortran (lowesw and
I read your mail briefly while I was gone [ which included two well-received
talks about Rcpp / RInside on the west coast :) ], and now that I got back
into town I still don't fully understand what you want.
You do have function objects, as well as examples/functionCallback/ -- is
that good enough? It allows you to call just about any R function via Rcpp,
but of course it doesn't magically make it faster.
And in case you are coming from C++ rather than R: look at RInside.
| It would be nice if there were already code out there that gives me a
| tidier interface that I could use instead of transcribing the R wrapper
| into C. And even cooler if R's 'formula' DSL had a C++ equivalent...
Well but R source was written to be used from R so ... I still don't quite
understand what you are expecting. That Rcpp rewrites all of R for you?
Anyway, Romain kindly added formula objects to Rcpp as well. So maybe that
will help you along, and more examples or use cases would be fine too.
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