R and C++

You are right here, if you have an R project which is not fast enough and following conditions are true. You checked for existing R libraries with good performance. Typically those would be libraries implemented in C++ with R wrappers. You checked your code for suboptimal passages and they cant be fixed within R. Then it is a good idea to use Rcpp to solve such problems as necessary loops, large recursive problems and need for advanced data structures not available in r. It makes sense to avoid a pure C++ project because we would not be able to use advantages of R.

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