On Thu, Mar 5, 2009 at 10:00 AM, Marc Vinyes <mvin...@aleasoft.com> wrote: >>If you ***look at the code*** for arima you will see that ``%+%'' is >>defined >>in terms of a call to ``.Call()'' which calls ``R_TSconv''. So >>apparently >>R_TSconv is a C or Fortran function or subroutine in a ``shared >>object library'' >>or dll upon which arima depends. Hence to do anything with it you'll >>need to get >>that shared object library and dynamically load it. (E.g. get the >>code, SHLIB it, >>and dynamically load the resulting shared object library.) > >>The code is all available from the R source tarball. > >>If this is a challenge for you then the best advice would be not to >>mess with it. > > Hi Rolf, > It took me some time to come to the same conclusion (I didn't even know what > .Call() was) but I've found an easier way to modify the R file without > having to understand how to link dlls. I just downloaded the full R package, > Rtools and followed the instructions in > http://cran.r-project.org/doc/manuals/R-admin.html#Building-the-core-files > to build it. Then I can modify C:\R\src\library\stats\R\arima.R and run it. > It is quite exagerated that I have to build R in order to modify an R file > without messing with dlls, and I think it would be interesting to make this > process easier, but for now I'm happy to be productive again. > > Thank you all for your help, > > Best, > MarC >
Just a quick note on your original question: if you use edit(arima), you have to remember that it returns the modified function, which then must be stored. I.e, use arima<-edit(arima) instead of just edit(arima) ,and changes should be stored. Regards, Gustaf -- Gustaf Rydevik, M.Sci. tel: +46(0)703 051 451 address:Essingetorget 40,112 66 Stockholm, SE skype:gustaf_rydevik ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
