rpy2导入器失败，xts和quantmod [英] rpy2 importr failing with xts and quantmod

问题描述

我是rpy2的新手，在使用importr导入R包'xts'和'quantmod'时遇到问题

I'm new to rpy2 and am having trouble using importr to import the R packages 'xts' and 'quantmod'

代码为：

from rpy2.robjects.packages import importr
xts = importr('xts')
quantmod = importr('quantmod')

错误是：

LibraryError: Conflict when converting R symbol in the package "xts" to a Python symbol (.subset.xts -> _subset_xts while there is already _subset_xts)

LibraryError: Conflict when converting R symbol in the package "quantmod" to a Python symbol (skeleton.TA -> skeleton_TA while there is already skeleton_TA)

对于许多其他软件包，使用importr我没有遇到这个问题'stats'，'graphics'，'zoo'，'ggplot2'

I don't get this problem using importr for many other packages, e.g. 'stats', 'graphics', 'zoo', 'ggplot2'

版本：

• python版本2.7.3


• R版本2.15.2


• rpy2版本'2.3.0beta1'

任何帮助将不胜感激

推荐答案

Rpy2的 importr（）试图转换任何。

Rpy2's importr() is trying to convert any "." in R object names to "_" for usage with Python.

但是，只要有两个带有。的R对象名，就可以使用。或 _（两个字符均对R中的名称有效）rpy2报告错误。这里的R包 xts定义了两个对象 .subset_xts 和 .subset.xts 。解决方法是手动指定如何转换名称：

However, whenever there are two R object names with either "." or "_" (both characters are valid for names in R) rpy2 is reporting an error. Here the R package "xts" is defining the two objects .subset_xts and .subset.xts. The workaround is specify manually how to convert names:

from rpy2.robjects.packages import import
xts = importr("xts", robject_translations = {".subset.xts": "_subset_xts2", 
                                             "to.period": "to_period2"})

rpy2文档中提供了有关导入R包。

More is available in the rpy2 documentation about importing R packages.

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