Hello, I wish to use the compiled version of a particular function( mean(x) to be exact ) and I can't use the source files as I am told by my boss I am to assume that users will not have the source files available to them. So this is my question: how do I find out which lib which particular source file is placed into? I have tried R.dll,Rblas.dll,Rlapack.dll,stats.dll,methods.dll,Rzlib.dll and a host of others. I tried using "rcmd shlib myfile.c <filename>.dll" but I still get file not found errors. If it helps mean(x) is found in names.c which leads to do_summary which leads to summary.c and all of these require various .h files. Thanks, TJ -- View this message in context: http://www.nabble.com/Using-Internals-via-their-compiled-sources-tp18437781p18437781.html Sent from the R help mailing list archive at Nabble.com.