import pandas as pd
import pandas.rpy.common as com
import rpy2
r = rpy2.robjects.r

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

r.assign('bob', rdf)

%R plot(bob$$A, bob$$B)

r.assign('testX', df.A)
r.assign('testY', df.B)
%R plot(testX, testY)

%R hist(bob$$A)

%R hist(testX)