在Windows 10中安装后无法加载'rpy2'模块

Question

When I try to load through PyCharm some packages in rpy2 like importr with the following code:

from rpy2.robjects.packages import importr

I get the following error message

ValueError: r_home is None. Try python -m rpy2.situation

Answer 1

Make sure you have release 2.1.5 and up (they fix issues with r_home in it).

If this is not the case, maybe this could help (taken from here ):

If calling initr() returns an error stating that R_HOME is not defined, you should either have the R executable in your path ( PATH on unix-alikes, or Path on Microsoft Windows) or have the environment variable R_HOME defined. Should the initialization fail, a mismatch between the version of the R rpy2 was compiled against and the R rpy2 is run with should be investigated. The variable rpy2.rinterface.R_BUILD_VERSION contains information about the R version rpy2 was built against. rpy2 is relatively independent of R versions, but changes in the RC API might cause problems.