pandas df to R df

In [1]: from rpy2.robjects import r, pandas2ri

In [2]: pandas2ri.activate()

In [5]: df = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6], 'C':[7,8,9]},
   ...:                   index=["one", "two", "three"])
   ...: 

In [6]: r_dataframe = pandas2ri.py2ri(df)

In [7]: print(type(r_dataframe))
<class 'rpy2.robjects.vectors.DataFrame'>

In [8]: print(r_dataframe)
      A B C
one   1 4 7
two   2 5 8
three 3 6 9

In [3]: r.data('iris')
Out[3]: 
R object with classes: ('character',) mapped to:
<StrVector - Python:0x12a3f3f08 / R:0x7f896c23cf38>
['iris']

In [4]: r['iris'].head()
Out[4]: 
   Sepal.Length  Sepal.Width  Petal.Length  Petal.Width Species
1           5.1          3.5           1.4          0.2  setosa
2           4.9          3.0           1.4          0.2  setosa
3           4.7          3.2           1.3          0.2  setosa
4           4.6          3.1           1.5          0.2  setosa
5           5.0          3.6           1.4          0.2  setosa