使用RcppArmadillo从sourceCpp迁移到软件包 [英] Moving from sourceCpp to a package with RcppArmadillo

问题描述

这与有关从sourceCpp到带有Rcpp的软件包的帖子有些相关

This is somewhat related to the post regarding moving from sourceCpp to a package with Rcpp Moving from sourceCpp to a package w/Rcpp. However, I am using RcppArmadillo on a Mac OS X 10.10.4 and have had trouble getting a package to work. The file that works with sourceCpp is as follows:

#include <RcppArmadillo.h>
// [[Rcpp::depends(RcppArmadillo)]]

using namespace Rcpp;

// [[Rcpp::export]]
arma::mat cholcalcCpp(arma::mat& SS, arma::umat& Aadj){

  int p = SS.n_rows;
  arma::mat L(p,p);
  arma::mat D(p,p);

  L = arma::eye(p,p);
  D = arma::eye(p,p);

  return (L*sqrt(D));
}

尝试使用R Studio通过项目">创建项目">带有Rcpp的程序包创建新项目也没有用，因为我一直收到错误消息，说无法识别命令武器.我尝试在RccpExports.cpp文件中添加 #include< RcppArmadillo.h> ，但是每次我尝试构建和重新加载Rstudio时，Rstudio都会删除该行.谁能建议我如何从.cpp文件转到RccpArmadillo软件包?谢谢.

Trying to use R Studio to create a new project using Project>Create Project>Package w/Rcpp didn't work either because I kept getting an error saying that command arma wasn't recognized. I tried adding the #include <RcppArmadillo.h> in the RccpExports.cpp file, but Rstudio deletes that line every time I try to build and reload. Can anyone suggest how I can go from the .cpp file to a RccpArmadillo package? Thanks.

推荐答案

有些事情可能是错误的.首先，您确实需要修改 DESCRIPTION 文件以包含 LinkingTo:Rcpp，RcppArmadillo ，并确保 #include< RcppArmadillo.h> 出现在/src 目录中的每个 .cpp 文件中.您还需要包含两个 Makevars 文件.

There are a few things that could be wrong. Primarily, you do need to modify the DESCRIPTION file to include LinkingTo: Rcpp, RcppArmadillo and ensure that #include <RcppArmadillo.h> is present in each .cpp file in the /src directory. You will also need to include two Makevars files.

Makevars.win 和 Makevars 具有:

PKG_LIBS = $(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS)

有关设置RStudio以将RcppArmadillo作为软件包使用的完整演练，请参见:

For a complete walkthrough of setting up RStudio to use RcppArmadillo as a package please see:

http://thecoatlessprofessor.com/programming/setting-up-rstudio与rcpparmadillo一起工作/

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