Le 28 févr. 2014 à 11:52, Gregor Kastner <gregor.kast...@wu.ac.at> a écrit :
> Hi Hideyoshi, > >> Is there a way I can just call that function in Rcpp rather than having to >> install new libraries or create my own? (I presume that there is probably a >> “C_do_fmin.c” file somewhere that I can use?) > > This questions has been discussed in this list about a month ago: > > http://r.789695.n4.nabble.com/Linking-to-native-routines-in-other-packages-tt4683969.html#none As Dirk said, this is not the same thing. The level of complexity of calling an internal function of the stats package is quite high. I’d suggest : - reimplement clean c++ code as Dirk says - call the R function optimize form C++. Chances are the overhead of doing that is minimal and anecdotic compared to calling the objective function. - use something else as Dale says. > I am now using the approach that Romain suggested in this thread. Be sure to > include > > PKG_CPPFLAGS+=-I../inst/include/ As it has been reported to me by Brian Ripley, += is a gnu-ism so it is not portable. Also, you should not have the last `/` So: PKG_CPPFLAGS = -I../inst/include > in the Makevars and Makevars.win files. AFAIK know this mechanism is not > automated (yet), see > http://r.789695.n4.nabble.com/LinkingTo-self-tt4684613.html > > Best, > Gregor _______________________________________________ Rcpp-devel mailing list Rcpp-devel@lists.r-forge.r-project.org https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
