使用rpy2将.R文件中的源代码导入python(problems sourcing in an .R file into python using rpy2)

使用rpy2将.R文件中的源代码导入python(problems sourcing in an .R file into python using rpy2)

在rpy 1.x中，要获取.R文件，所有人必须做的就是：

import rpy rpy.r.source("filename.R")

在rpy2中，为了从Python中获取.R文件需要发生什么？

我尝试了几种途径，例如：

import rpy2.robjects as ro ro.source("filename.R")

返回这样的错误（抱歉，如果格式不正确）：

File "C:\Python27\lib\site-packages\rpy2\robjects\functions.py", line 166, in __call__ return super(SignatureTranslatedFunction, self).__call__(*args, **kwargs) File "C:\Python27\lib\site-packages\rpy2\robjects\functions.py", line 99, in __call__ res = super(Function, self).__call__(*new_args, **new_kwargs) RRuntimeError: Error in file(filename, "r", encoding = encoding) : cannot open the connection

提前致谢...

In rpy 1.x, to source in a .R file, all one had to do was this:

import rpy rpy.r.source("filename.R")

In rpy2, what needs to happen in order to source in a .R file from Python?

I have tried several avenues, such as this:

import rpy2.robjects as ro ro.source("filename.R")

Returns an error like this (sorry if this doesn't format correctly):

File "C:\Python27\lib\site-packages\rpy2\robjects\functions.py", line 166, in __call__ return super(SignatureTranslatedFunction, self).__call__(*args, **kwargs) File "C:\Python27\lib\site-packages\rpy2\robjects\functions.py", line 99, in __call__ res = super(Function, self).__call__(*new_args, **new_kwargs) RRuntimeError: Error in file(filename, "r", encoding = encoding) : cannot open the connection

Thanks in advance...

最满意答案

您应该能够使用rpy2.robjects.r() （或.R() 运行任意R代码 ，不要认为存在差异）：

import rpy2.robjects as ro ro.r("""source('filename.R')""")

我首先在RStudio（或您首选的替代方案）中测试filename.R ，只是为了确保它是一个有效的文件，并且可以没有问题地获取。

You should be able to run arbitrary R code with rpy2.robjects.r() (or .R(), don't think there's a difference):

import rpy2.robjects as ro ro.r("""source('filename.R')""")

I'd test filename.R first in RStudio (or your preferred alternative) first, just to make sure it's a valid file and can be sourced without issues.