Question

我的设置是jupyter 4.0.0，python 2.7.6，rpy2 2.7.0，R 3.2.2

我正在尝试使用该软件包＆＃34; imputeR＆＃34;。

当我直接从R使用它时，它可以正常工作：

data = read.csv("./data/cs-training.csv")
data$SeriousDlqin2yrs <- NULL
imputed = impute(data, lmFun = "lassoR")

使用以下输出：

Imputation task is: Regression 
iteration 1 using lassoR in progress...done!
Difference after iteration 1 is 0.0006133373 
iteration 2 using lassoR in progress...done!
Difference after iteration 2 is 3.031679e-07 
iteration 3 using lassoR in progress...done!
Difference after iteration 3 is 6.417477e-11 
iteration 4 using lassoR in progress...done!
Difference after iteration 4 is 1.919108e-10

来自python，通过使用rpy2，不幸的是它失败了，我还没有能够解决这个问题......任何想法？

import pandas as pd

df = pd.read_csv("../data/cs-training.csv")
from rpy2.robjects.packages import importr
import rpy2.robjects.numpy2ri
rpy2.robjects.numpy2ri.activate()

imputeR = importr('imputeR')
impute = imputeR.impute

imputeR.impute(df2i.as_matrix(),lmFun="lassoR")

这是我得到的标准输出

Imputation task is: Regression 
iteration 1 using lassoR in progress...
/home/vagrant/.virtualenvs/venvpy2/local/lib/python2.7/site-packages/rpy2/robjects/functions.py:106: UserWarning: Error in `colnames<-`(`*tmp*`, value = c("x1", "x2", "x3", "x4", "x5",  : 
  length of 'dimnames' [2] not equal to array extent

  res = super(Function, self).__call__(*new_args, **new_kwargs)
---------------------------------------------------------------------------
RRuntimeError                             Traceback (most recent call last)
<ipython-input-12-bd8bd78310aa> in <module>()
      8 df2i = df.drop("SeriousDlqin2yrs",axis=1)
      9 
---> 10 imputeR.impute(df2i.as_matrix(),lmFun="lassoR")

/home/vagrant/.virtualenvs/venvpy2/local/lib/python2.7/site-packages/rpy2/robjects/functions.pyc in __call__(self, *args, **kwargs)
    176                 v = kwargs.pop(k)
    177                 kwargs[r_k] = v
--> 178         return super(SignatureTranslatedFunction, self).__call__(*args, **kwargs)
    179 
    180 pattern_link = re.compile(r'\\link\{(.+?)\}')

/home/vagrant/.virtualenvs/venvpy2/local/lib/python2.7/site-packages/rpy2/robjects/functions.pyc in __call__(self, *args, **kwargs)
    104         for k, v in kwargs.items():
    105             new_kwargs[k] = conversion.py2ri(v)
--> 106         res = super(Function, self).__call__(*new_args, **new_kwargs)
    107         res = conversion.ri2ro(res)
    108         return res

RRuntimeError: Error in `colnames<-`(`*tmp*`, value = c("x1", "x2", "x3", "x4", "x5",  : 
  length of 'dimnames' [2] not equal to array extent

rpy2 - RRuntimeError：colnames中的错误

0 个答案: