First, Laurent, I am giving rpy2 a try and REALLY like what I see so
far. It is very much more intuitive, both from the point-of-view of
an R programmer as well as for python programmers.
Data frames are very nice R data structures, so I would like to
capitalize on them and the changes included in rpy2 as much as
possible. So, how can I access the members of y (the data.frame)? If
one uses list subsetting, the values are actually reversed. I figured
out that y.getNames() will return the names of z, which I can then use
to determine the list position. Is there a way to do this with the
column names directly?
In [34]: z = ro.r['data.frame'](x=ro.r.c(1,2,3,4),y=ro.r.c(5,6,7,8))
In [35]: z
Out[35]:
structure(list(y = 5:8, x = 1:4), .Names = c("y", "x"), row.names = c(NA,
-4L), class = "data.frame")
In [36]: z[0]
Out[36]: 5:8
In [37]: z[0][1]
Out[37]: 6
In [38]: z.getNames()
Out[38]: c("y", "x")
Thanks,
Sean
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