Hi Ben, On Sat, May 7, 2022 at 4:24 PM Ben Engbers <ben.engb...@be-logical.nl> wrote: > > Hi, > > My package (RBaseX) is written entirely in R. The performance is not bad > but to further improve the performance I want to investigate to what > extent use of C++ makes sense. Problem is that I have little experience > with C++ and none with Rcpp. So I am looking for examples. > On my (linux) system I installed several packages that needed to be > compiled. So it is likely that I already have examples on my system. > I strongly recommend you profile your code to determine where there are performance bottlenecks before writing any new code. Especially before adding compiled code to your package.
The infamous Knuth quote: "We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Yet we should not pass up our opportunities in that critical 3%. A good programmer will not be lulled into complacency by such reasoning, he will be wise to look carefully at the critical code; but only after that code has been identified." Best, Josh > My first question is if there is a useful linux command to search all > the source code of installed packages on my system. > The second question is if there is a command to search all packages at > https://cran.r-project.org/web/packages/available_packages_by_name.html? > > This question is not only relevant to C++ examples. It would also be > nice if you could search for occurrences of commands in R code. > > Ben > > ______________________________________________ > R-package-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-package-devel -- Joshua Ulrich | about.me/joshuaulrich FOSS Trading | www.fosstrading.com ______________________________________________ R-package-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-package-devel
