ggplot2不存在于python的rpy2中？ [英] ggplot2 not present in rpy2 for python?

问题描述

我在Python3.2中使用rpy2 v2.1.9，我不明白为什么我不能使用库ggplot2

  import rpy2 
 from rpy2.robjects import r 
 r.library（ggplot2）
  

这里是我得到的错误消息

 函数错误（package，help，pos = 2， lib.loc = NULL，character.only = FALSE，：
没有包名为'ggplot2'
 Traceback（最近一次调用最后一个）：
文件< stdin>，line 1，在< module> 
文件中/usr/local/lib/python3.2/dist-packages/rpy2/robjects/functions.py，第82行，在__call__ 
 return super（SignatureTranslatedFunction ，self）.__ call __（* args，** kwargs）
文件/usr/local/lib/python3.2/dist-packages/rpy2/robjects/functions.py，第34行，在__call__ 
 res = super（Function，self）.__ call __（* new_args，** new_kwargs）
 rpy2.rinterface.RRuntimeError：函数错误（package，help，pos = 2，lib.loc = NULL，只有= FALSE，：
没有包名为'ggplot2'
  

解决方案

查看第一条错误消息的尾部：

没有名为'ggplot2'的包

您需要首先安装 ggplot2 包。激发R本身，并说

pre $ $ $ $ $ install.packages（ggplot2）

I am working with rpy2 v2.1.9 in Python3.2, I don't understand why I can't use the library ggplot2

import rpy2
from rpy2.robjects import r
r.library("ggplot2")

Here is the error message I got

Error in function (package, help, pos = 2, lib.loc = NULL, character.only = FALSE,  : 
  there is no package called 'ggplot2'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python3.2/dist-packages/rpy2/robjects/functions.py", line 82, in __call__
     return super(SignatureTranslatedFunction, self).__call__(*args, **kwargs)
   File "/usr/local/lib/python3.2/dist-packages/rpy2/robjects/functions.py", line 34, in __call__
     res = super(Function, self).__call__(*new_args, **new_kwargs)
 rpy2.rinterface.RRuntimeError: Error in function (package, help, pos = 2, lib.loc = NULL, character.only = FALSE,  : 
   there is no package called 'ggplot2'

解决方案

See the tail of the first error message:

there is no package called 'ggplot2'

You need to install the ggplot2 package first. Fire up R itself, and say

 install.packages("ggplot2")

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