r - 在 R、Mac OS X El Capitan 中安装 "rgl"软件包

Question

我是 R 编程新手，所以如果我看起来很天真，我提前道歉。我希望能够对 3D 数据进行一些主成分分析。我读到“pca3d”函数对此很有用，但我需要下载“rgl”库。当我使用 install.packages 时，它会询问:

install.packages("rgl")

  There is a binary version available but the source version is later:
   binary    source needs_compilation
rgl 0.95.1201 0.95.1367              TRUE

Do you want to install from sources the package which needs compilation?
y/n: n

我尝试将其安装为二进制文件和源代码，但似乎没有任何效果。如果我尝试加载二进制版本，则会收到此错误:

Error : .onLoad failed in loadNamespace() for 'rgl', details:
  call: dyn.load(file, DLLpath = DLLpath, ...)
error: unable to load shared object '/Library/Frameworks/R.framework/Versions/3.2/Resources/library/rgl/libs/rgl.so':
dlopen(/Library/Frameworks/R.framework/Versions/3.2/Resources/library/rgl/libs/rgl.so, 6): Library not loaded: /opt/X11/lib/libGLU.1.dylib
Referenced from: /Library/Frameworks/R.framework/Versions/3.2/Resources/library/rgl/libs/rgl.so
  Reason: image not found
Error: package or namespace load failed for ‘rgl’

如果我对从源代码安装说"is"，我会收到以下错误:

configure: error: X11 not found but required, configure aborted.
ERROR: configuration failed for package ‘rgl’
* removing ‘/Library/Frameworks/R.framework/Versions/3.2/Resources/library/rgl’
* restoring previous ‘/Library/Frameworks/R.framework/Versions/3.2/Resources/library/rgl’
Warning in install.packages :
 installation of package ‘rgl’ had non-zero exit status

我已经花了几个小时来研究如何完成这项工作，所以如果有人可以告诉我应该如何安装 rgl 软件包，那么我将非常感激!

谢谢，克莱尔

Answer 1

与同事交谈后，我所要做的就是从 here 下载 XQuartz安装X11，然后再次安装源码包。现在可以了!