如何将另存为RData的R中的字符向量导入到python列表中？

Question

如何将另存为RData的R中的字符向量导入到python列表中？

例如，如果我已将此字符向量保存在R中：

x <- c("Hello", "world!")
save (x, file = 'x.RData')

然后使用rpy2在python中加载，如下所示：

from __future__ import print_function
from rpy2.robjects import pandas2ri,r
import rpy2.robjects as robjects

def main():
    r['load']('x.RData')
    variables = tuple(robjects.globalenv.keys())
    print('variables: {0}'.format(variables))
    x = robjects.globalenv['x']
    print('x: {0}'.format(x))
    print('type(x): {0}'.format(type(x)))


if __name__ == "__main__":
    main()

打印：

variables: ('x',)
x: [1] "Hello"  "world!"
type(x): <class 'rpy2.robjects.vectors.StrVector'>

如何将其导入到python列表中？

Answer 1

您可以简单地使用list() ：

from __future__ import print_function
from rpy2.robjects import pandas2ri,r
import rpy2.robjects as robjects

def main():
    r['load']('x.RData')
    variables = tuple(robjects.globalenv.keys())
    print('variables: {0}'.format(variables))
    x = robjects.globalenv['x']
    print('x: {0}'.format(x))
    print('type(x): {0}'.format(type(x)))
    print('list(x): {0}'.format(list(x)))

if __name__ == "__main__":
    main()