相关疑难解决方法(0)

我试图从源代码安装R包,但收到错误:

* installing *source* package ‘mclust’ ...
** package ‘mclust’ successfully unpacked and MD5 sums checked
** libs
gfortran-4.8   -fPIC  -g -O2  -c mclust.f -o mclust.o
gfortran-4.8   -fPIC  -g -O2  -c mclustaddson.f -o mclustaddson.o
clang -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -single_module -multiply_defined suppress -L/Library/Frameworks/R.framework/Resources/lib -L/usr/local/lib -o mclust.so mclust.o mclustaddson.o -L/Library/Frameworks/R.framework/Resources/lib -lRlapack -L/Library/Frameworks/R.framework/Resources/lib -lRblas -L/usr/local/lib/gcc/x86_64-apple-darwin13.0.0/4.8.2 -lgfortran -lquadmath -lm -L/usr/local/lib/gcc/x86_64-apple-darwin13.0.0/4.8.2 -lgfortran -lquadmath -lm -F/Library/Frameworks/R.framework/.. -framework R -Wl,-framework -Wl,CoreFoundation
ld: warning: directory not found for option '-L/usr/local/lib/gcc/x86_64-apple-darwin13.0.0/4.8.2'
ld: warning: directory not found for option …

我正在研究一个需要逐元素矩阵乘法的代码.我试图在Rcpp中实现这个,因为代码需要一些昂贵的循环.我对Rcpp相当新,可能会遗漏一些东西,但我不能让元素明确的矩阵乘法起作用.

// [[Rcpp::export]]

NumericMatrix multMat(NumericMatrix m1, NumericMatrix m2) {
    NumericMatrix multMatrix = m1 * m2 // How can this be implemented ?
}

我可能会遗漏一些非常微不足道的东西,并想问是否有任何方法可以做到这一点(除了使用循环迭代每个元素并乘以).

提前致谢.

这是Rcpp中Element-Wise Matrix Multiplication问题的后续内容

自升级到Mavericks以来,我一直在使用RcppArmadillo获得许多不同类型的错误.我安装了Xcode 5.0.2和命令行工具.另外,来自Homebrew的gfortran.但我一直遇到下面的错误 -

> cppFunction("arma::mat schur(arma::mat& a, arma::mat& b) 
                       { return(a % b); }", depends="RcppArmadillo")


ld: library not found for -lgfortran
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [sourceCpp_18474.so] Error 1
clang++  -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG  -I/usr/local/include  -    I"/Library/Frameworks/R.framework/Versions/3.0/Resources/library/Rcpp/include" -I"/Library/Frameworks/R.framework/Versions/3.0/Resources/library/RcppArmadillo/include"    -fPIC  "-mtune=native -g -O2 -Wall -pedantic -Wconversion" -c fileaf992bfb8f84.cpp -o fileaf992bfb8f84.o clang++ -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -single_module -multiply_defined suppress -L/usr/local/lib -L/usr/local/lib -o sourceCpp_18474.so fileaf992bfb8f84.o -L/Library/Frameworks/R.framework/Resources/lib -lRlapack -L/Library/Frameworks/R.framework/Resources/lib -lRblas -lgfortran …