On May 29, 2014, at 7:12 PM, Erin Hodgess <erinm.hodg...@gmail.com> wrote:
> Dear R People: > > How are you? > > I would like to look at the underlying C code from the program C_ARIMA_Like > in the stats package. > > However, since that is a base package, I'm not entirely sure how to access > this. > > When I used the .C(C_ARIMA_Like....) > > it says that the C_ARIMA_Like cannot be found. > > This is on Windows 7, R version 3.0.2. > > Thank you for any help! > Sincerely, > Erin Hi Erin, If you are working from a binary install of R, you won't able to see the sources for C or FORTRAN based functions. If it is a base package in the '../library' tree like 'stats', in the source tarball from CRAN or in the R SVN repo, there will be a 'src' directory for the package where relevant C and/or FORTRAN code will be contained. As an example for arima.c, in the SVN repo for the 3.0 branch tree: https://svn.r-project.org/R/branches/R-3-0-branch/src/library/stats/src/arima.c For R-Devel, it will be in 'trunk': https://svn.r-project.org/R/trunk/src/library/stats/src/arima.c Scroll down or search in the arima.c source for the function name "ARIMA_Like". If you know something about SVN repo trees, the path will make sense. Other common C and/or FORTRAN code that is not part of the base packages may be in the ../src/main directory: https://svn.r-project.org/R/branches/R-3-0-branch/src/main/ and there is a file 'names.c' that can be helpful in locating specific C functions and their associated declared C names. For Recommended packages, there is also a separate SVN repo at: https://svn.r-project.org/R-packages/ but it may be easier to download the tarball for each package from CRAN. Regards, Marc Schwartz ______________________________________________ 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.
