使用自定义 R 安装安装 rpy2

Question

我在

中自定义安装了 R

~/R-3.2.2/bin/

当我运行

sudo pip install rpy2

我明白了

    Warning: Tried to guess R's HOME but no command (R) in the PATH.
Traceback (most recent call last):
  File "<string>", line 17, in <module>
  File "/tmp/pip-build-ITKmkR/rpy2/setup.py", line 330, in <module>
    ri_ext = getRinterface_ext()
  File "/tmp/pip-build-ITKmkR/rpy2/setup.py", line 231, in getRinterface_ext
    r_home = _get_r_home()
  File "/tmp/pip-build-ITKmkR/rpy2/setup.py", line 63, in _get_r_home
    r_home = r_home.split(os.linesep)
UnboundLocalError: local variable 'r_home' referenced before assignment

我没有找到这个问题的答案，尽管它出现在几个帖子中。这是我试过的

将 R 可执行文件添加到 PATH

export PATH=$PATH:/home/R-3.2.2/bin/ 没用
导出具有相同值的 R_HOME：无效
echo export PATH=$PATH:/home/R-3.2.2/bin/ >> ~/.bashrc source ~/.bashrc

没用。

另一方面，"problem"似乎在这里解决了 https://bitbucket.org/rpy2/rpy2/issues/283/rpy2-installation-error-when-r-output

如何正确安装rpy2？

Answer 1

错误是由于 issue in rpy2（刚刚修复）。否则，可能是因为 R 不在您认为的 PATH 中，或者可能是您没有运行它的权限。

尝试：

# assert that the R executable is where you think it is
~/R-3.2.2/bin/R --version
# set the PATH
export PATH=${PATH}:~/R-3.2.2/bin/
# unset R_HOME if needed
unset R_HOME
# install rpy2
pip install rpy2

使用自定义 R 安装安装 rpy2

Install rpy2 with custom R installation

r

rpy2