源是 r 函数，运行 r 源文件。因此，在 rpy2 中，我们有两种调用方式：

source is a r function, which runs a r source file. Therefore in rpy2, we have two ways to call it, either:

import rpy2.robjects as robjects
r = robjects.r
r['source']('script.R')

或

import rpy2.robjects as robjects
r = robjects.r
r.source('script.R')

r [ r.source（ script.R）] 是错误的处理方式。

r[r.source("script.R")] is a wrong way to do it.

相同的想法可能适用于下一行。

Same idea may apply to the next line.