Hello, I am a student of IIT Bombay and I am using lars for one of my projects. I wanted to enquire if lars is using C under the hood. Is it true? Can someone point me to the corresponding C function? Thank You very much. Regards, Achin Bansal
Lars package
3 messages · achin at cse.iitb.ac.in, David Winsemius, Niels Richard Hansen
On Apr 7, 2011, at 3:43 AM, achin at cse.iitb.ac.in wrote:
Hello, I am a student of IIT Bombay and I am using lars for one of my projects. I wanted to enquire if lars is using C under the hood. Is it true? Can someone point me to the corresponding C function? Thank You very much.
If you just type lars at the console (after loading the package) , you will see the uncommented code. Most of R has "C (or Fortran) under the hood", so there may be a semantic problem in answering that direct question. You can get the full source on any CRAN mirror.
David Winsemius, MD West Hartford, CT
Achin Without dwelling too much on the semantic problem, the answer to my understanding of your question is: No, there is no C code in the lars package, but there is a single Fortran routine in the package. The Fortran routine does not seem to do anything useful in itself. By the way, the more recent glmnet package by the same authors provides a faster alternative to lars (for lasso), and it works for glm's too. - Niels
On 07/04/11 05.10, David Winsemius wrote:
On Apr 7, 2011, at 3:43 AM, achin at cse.iitb.ac.in wrote:
Hello, I am a student of IIT Bombay and I am using lars for one of my projects. I wanted to enquire if lars is using C under the hood. Is it true? Can someone point me to the corresponding C function? Thank You very much.
If you just type lars at the console (after loading the package) , you will see the uncommented code. Most of R has "C (or Fortran) under the hood", so there may be a semantic problem in answering that direct question. You can get the full source on any CRAN mirror.
Niels Richard Hansen Web: www.math.ku.dk/~richard Associate Professor Email: Niels.R.Hansen at math.ku.dk Department of Mathematical Sciences nielsrichardhansen at gmail.com University of Copenhagen Skype: nielsrichardhansen.dk Universitetsparken 5 Phone: +1 510 502 8161 2100 Copenhagen ? Denmark