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rcpp rcpp seamless r and c integration extending and growing r applications via an easy to use robust and performant c interface all key r data types map naturally into key c data structures and simple interfaces make transfer back and forth very easy and by composing more complex interfaces become possible numerous examples as well as extensive documentation facilitate its use get started first steps are easy rcpp makes it easy to create a first example just use cppfunction and supply a valid c function in the argument string here is a simple example from the introductory vignette library rcpp cppfunction bool isoddcpp int num 10 bool result num 2 1 return result isoddcpp 42l of course that function could be written in r and we show an r variant in that vignette but this provides a nice and simple stepping stone recursive functions are easy too rcpp makes it equally easy to source code from a file via sourccpp and supply a path to a file as the argument the well known fibonacci sequence can set up this way include rcpp h rcpp export int fibonacci const int x if x this shows another nice trick we can include an r example use in our c file by placing it behind a marker of r try it on my computer this call is still so fast that system time can barely measure it rcpp packages rcpp is used by over 3000 packages on cran alone below is a small selection of some of the key packages cran github cran github cran github cran github cran github cran github cran github the gallery has numerous examples the related website gallery rcpp org contains over one hundred distinct examples ranging from simple first steps on how to create certain data types for features to more complex applications examples all examples are fully tested and should be runnable best of all it is open website to which you could contribute the next article see gallery rcpp org for more ten pdf vignettes the rcpp package comes with ten pdf vignettes documenting both first steps and more advanced use cases the rcpp devel mailing can help with additional user or developer questions pdf pdf pdf pdf pdf pdf pdf pdf pdf pdf the rcpp book the book published in the springer user series is available from the publisher as both a soft cover version isbn 978 1 4614 6867 7 and an e book isbn 978 1 4614 6868 4 institutions with a springer link subscription can also access it springer provides electronic previews the book is also available from amazon and other on line booksellers github rcpp repo stackoverflow email website based on story which is untitled and part of html5 up photos are courtesy of pixabay