Re: [Rd] : Operator overloading for custom classes

2010-03-27 Thread Chidambaram Annamalai
Thank you for replying! But I have since figured out how to perform the operator overloading after reading the "Not so short tutorial to S4 classes" and a bit of Robert Gentleman's deceptively titled book on R. (I had mistakenly posted to r-devel earlier and when I posted to r-help subsequently I

[Rd] : Operator overloading for custom classes

2010-03-23 Thread Chidambaram Annamalai
Hi, I need some help to get some of the object orientation, specifically the methods that overload the basic arithmetic operations, from sample C++ code to R. I don't have experience with such advanced language features inside of R. So I was wondering if some of you could help me out in this regar

Re: [Rd] application to mentor syrfr package development for Google Summer of Code 2010

2010-03-08 Thread Chidambaram Annamalai
hich Eureqa adjusts for > degrees of freedom in his fit evaluations. > > Best regards, > James Salsman > > On Sun, Mar 7, 2010 at 10:39 PM, Chidambaram Annamalai > wrote: > > > >> If I understand your concern, you want to lay the foundation for > >> de

Re: [Rd] application to mentor syrfr package development for Google Summer of Code 2010

2010-03-07 Thread Chidambaram Annamalai
omparison for nonlinear > models, but there are several good choices for approximations, > including the residual standard error, which I believe can be adjusted > for degrees of freedom, as can the F statistic which TableCurve uses; > see: http://en.wikipedia.org/wiki/F-test#Regression

Re: [Rd] application to mentor syrfr package development for Google Summer of Code 2010

2010-03-07 Thread Chidambaram Annamalai
It's been a while since I proposed syrfr and I have been constantly in contact with the many people in the R community and I wasn't able to find a mentor for the project. I later got interested in the Automatic Differentiation proposal (adinr) and, on consulting with a few others within the R commu

Re: [Rd] Mentor for GSOC '10: Symbolic Regression in R

2010-03-04 Thread Chidambaram Annamalai
-project.org/cgi-bin/mailman/listinfo/rcpp-devel > > Good luck finding a mentor, this sounds like a cool project. > > Romain > > > On 03/03/2010 08:17 PM, Chidambaram Annamalai wrote: > >> >> Hi all, >> >> I am looking to extend the regression and d

[Rd] Mentor for GSOC '10: Symbolic Regression in R

2010-03-03 Thread Chidambaram Annamalai
Hi all, I am looking to extend the regression and data analysis capabilities of R through Symbolic Regression that can potentially find implicit equation relationships in the input data. You can find my project proposal at: http://rwiki.sciviews.org/doku.php?id=developers:projects:gsoc2010:syrfr