Le 19/03/2018 à 17:21, akshay kulkarni a écrit :
dear sir,I am using R to model stock prices but a slow "for" loop has stifled my research. I am using Rcpp to speed up my "for" loop. I am also using RcppEigen to implement block operations on xts objects..... how do I use RcppEigen? If I just load it by: > require(RcppEigen) it is not recognising the .block method in C++. If I include it inside the cppFunction: > cppFunction(' include <RcppEigen.h> .....body') I get the following error: > error: "include doesn't name a type"My question is : how do I manipulate the installed RcppEigen package for the cppFunction to recognize block operations that are part of the Eigen library in C++? If I have to use the "include" key word (something like this: include <RcppEigen.h> ), where exactly should i position it in order to work with cppFunction ( I want to use Eigen block operation methods or functions inside the body of the cppFunction)?
It looks like you have missed some starter texts. Take a look at https://cran.r-project.org/web/packages/Rcpp/vignettes/Rcpp-introduction.pdf and http://gallery.rcpp.org/articles/eigen-eigenvalues/ Note that in all examples there is "#" before "include", it's not optional. May be some introduction texts to C++ would be useful too. Best, Serguei.
very many thanks for your time and effort..... yours sincerely, AKSHAY M KULKARNI _______________________________________________ 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
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