[英]problems sourcing in an .R file into python using rpy2
In rpy 1.x, to source in a .R file, all one had to do was this: 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")
In rpy2, what needs to happen in order to source in a .R file from Python? 在rpy2中,为了从Python中获取.R文件需要发生什么?
I have tried several avenues, such as this: 我尝试了几种途径,例如:
import rpy2.robjects as ro ro.source("filename.R")
Returns an error like this (sorry if this doesn't format correctly): 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
Thanks in advance... 提前致谢...
You should be able to run arbitrary R code with rpy2.robjects.r()
(or .R()
, don't think there's a difference): 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')""")
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. 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。
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