#包括未找到的<Rcpp11>文件

Question

我试图使用r中的Rcpp11包，它的源代码位于：

devtools::install_github("Rcpp11/Rcpp11")

我在这里读到：http://blog.r-enthusiasts.com/2014/05/27/disambiguating-rcpp11-and-rcpp/

我可以在我的include <Rcpp11>文件的开头使用.cpp + using namespace Rcpp11，但是我在源代码中得到了这个错误：

 egfile.cpp:1:10: fatal error: 'Rcpp11' file not found
 #include <Rcpp11>
           ^
 1 error generated.

其中egfile.cpp

#include <Rcpp11>
using namespace Rcpp11;

// Below is a simple example of exporting a C++ function to R. You can
// source this function into an R session using the Rcpp::sourceCpp 
// function (or via the Source button on the editor toolbar)

// For more on using Rcpp click the Help button on the editor toolbar

// [[Rcpp::export]]
int timesTwo(int x) {
   return x * 2;
}

对此有什么帮助吗？或者我应该遵从// [[Rcpp::plugins(cpp11)]]方法？

更新:使用attributes::sourceCpp()

devtools::install_github("Rcpp11/attributes")

然后从干净的会话重新启动：

library(Rcpp11)
attributes::sourceCpp("egfile.cpp") # in home directory.

我得到：

In file included from file2c1e303c4ed6.cpp:1:
    In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp11:4:
    In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp.h:238:
    /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:54:1: error: no member named 'Rf_pnorm' in the global namespace
RCPP_DPQ__2(norm,double mean = 0, double sd = 1, mean, sd )
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:30:51: note: expanded from macro 'RCPP_DPQ__2'
#define RCPP_DPQ__2(__NAME__,PAR1,PAR2,VAL1,VAL2) RCPP_DPQ(__NAME__,RCPP_ECHO(RCPP_CONCAT(PAR1,PAR2)), RCPP_ECHO(RCPP_CONCAT(VAL1,VAL2)) )
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:14:31: note: expanded from macro 'RCPP_DPQ'
decltype(sapply( x, ::Rf_p##__NAME__, VAL, lower, log ))                                          \
                 ~~^
                     <scratch space>:208:1: note: expanded from here
                 Rf_pnorm
                 ^
                     In file included from file2c1e303c4ed6.cpp:1:
                     In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp11:4:
                     In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp.h:238:
                     /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:54:1: error: no member named 'Rf_pnorm' in the global namespace
                 RCPP_DPQ__2(norm,double mean = 0, double sd = 1, mean, sd )
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                     /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:30:51: note: expanded from macro 'RCPP_DPQ__2'
                 #define RCPP_DPQ__2(__NAME__,PAR1,PAR2,VAL1,VAL2) RCPP_DPQ(__NAME__,RCPP_ECHO(RCPP_CONCAT(PAR1,PAR2)), RCPP_ECHO(RCPP_CONCAT(VAL1,VAL2)) )
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                     /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:16:29: note: expanded from macro 'RCPP_DPQ'
                 return sapply( x, ::Rf_p##__NAME__, VAL, lower, log ) ;                                                      \
                                ~~^
                                    <scratch space>:208:1: note: expanded from here
                                Rf_pnorm
                                ^
                                    In file included from file2c1e303c4ed6.cpp:1:
                                    In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp11:4:
                                    In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp.h:238:
                                    /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:54:1: error: no member named 'Rf_qnorm' in the global namespace
                                RCPP_DPQ__2(norm,double mean = 0, double sd = 1, mean, sd )
                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                    /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:30:51: note: expanded from macro 'RCPP_DPQ__2'
                                #define RCPP_DPQ__2(__NAME__,PAR1,PAR2,VAL1,VAL2) RCPP_DPQ(__NAME__,RCPP_ECHO(RCPP_CONCAT(PAR1,PAR2)), RCPP_ECHO(RCPP_CONCAT(VAL1,VAL2)) )
                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                    /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:20:31: note: expanded from macro 'RCPP_DPQ'
                                decltype(sapply( x, ::Rf_q##__NAME__, VAL, lower, log ))                                          \
                                                 ~~^
                                                     <scratch space>:208:1: note: expanded from here
                                                 Rf_qnorm
                                                 ^
                                                     In file included from file2c1e303c4ed6.cpp:1:
                                                     In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp11:4:
                                                     In file included from /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp.h:238:
                                                     /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:54:1: error: no member named 'Rf_qnorm' in the global namespace
                                                 RCPP_DPQ__2(norm,double mean = 0, double sd = 1, mean, sd )
                                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                                     /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:30:51: note: expanded from macro 'RCPP_DPQ__2'
                                                 #define RCPP_DPQ__2(__NAME__,PAR1,PAR2,VAL1,VAL2) RCPP_DPQ(__NAME__,RCPP_ECHO(RCPP_CONCAT(PAR1,PAR2)), RCPP_ECHO(RCPP_CONCAT(VAL1,VAL2)) )
                                                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                                                     /Library/Frameworks/R.framework/Versions/3.1/Resources/library/Rcpp11/include/Rcpp/stats/stats.h:22:29: note: expanded from macro 'RCPP_DPQ'
                                                 return sapply( x, ::Rf_q##__NAME__, VAL, lower, log ) ;                                                      \
                                                                ~~^
                                                                    <scratch space>:208:1: note: expanded from here
                                                                Rf_qnorm
                                                                ^
                                                                    4 errors generated.
                                                                make: *** [file2c1e303c4ed6.o] Error 1
                                                                Error in dyn.load(basename(dynlib)) : 
                                                                    unable to load shared object '/private/var/folders/77/9nq5hj5d37b1rhbzdt0z3twr0000gn/T/RtmpcjWOsg/file2c1e303c4ed6.so':
                                                                    dlopen(/private/var/folders/77/9nq5hj5d37b1rhbzdt0z3twr0000gn/T/RtmpcjWOsg/file2c1e303c4ed6.so, 6): image not found
                                                                In addition: Warning message:
                                                                    running command '/Library/Frameworks/R.framework/Resources/bin/R CMD SHLIB 'file2c1e303c4ed6.cpp'' had status 1 

Answer 1

想必，您正在尝试从R编译它，R将使用Rcpp::sourceCpp。您需要从sourceCpp包中实现attributes来为Rcpp11生成胶水代码。attributes可从github获得：

devtools::install_github("Rcpp11/attributes")

然后使用此版本编译您的文件，即

attributes::sourceCpp( "yourfile.cpp" )

使用Rstudio编译Rcpp11文件是我们尚未处理的问题，但我们认为需要使用这里