[Rpy] getting the Nth row of a data_frame

[BORGULYA <bor...@gy...>]

Dear All,

Could someone tell how to get the Nth row of a data_frame in Rpy?
The R version works, but I dont know what to write in Rpy:

R VERSION

> d =3D data.frame(a=3Dc(1,2,3), b=3Dc(71,72,73))
> r1 =3D d[1, ]
> r1
  a  b
1 1 71


RPY VERSION

from rpy import *
set_default_mode(NO_CONVERSION)
d =3D r.data_frame(a=3D(1,2,3), b=3D(71,72,73))
r1 =3D ????????


G=E1bor