Hi Rpy2 users,
I'm having some difficulty passing the 'na.rm' parameter to the R 'max'
function. I'm pretty new to rpy2, so I'm sure it's something obvious I'm
missing.
I have referred to the documentation on this subject, here:
http://rpy.sourceforge.net/rpy2/doc-2.2/html/robjects_functions.html
I also tried searching the mailing list archive, but didn't come across an
answer.
Here's my test source:
from rpy2 import robjects
from rpy2.robjects.packages import importr
data_series = robjects.IntVector( [1, 7, robjects.NA_Integer, 9, 2])
print data_series
# Note – I am using the underscore convention here, as
# suggested in the rpy2 documentation.
val = robjects.r.max(data_series, na_rm = True)
print val
Additionally, I tried the 'base' approach described in the docs, with the same
problem:
from rpy2 import robjects
from rpy2.robjects.packages import importr
base = importr('base')
data_series = robjects.IntVector( [1, 7, robjects.NA_Integer, 9, 2])
print data_series
val = base.max(data_series, na_rm = True)
print val
I'm always getting 'NA' as the result, regardless of whether I set 'na_rm' to
True or False (or 1 or zero, too).
The 'max' function does work as expected without the 'NA' object in the data
series.
Here are my version numbers:
OS : Ubuntu 10.04 LTS, Intel x86_64
Python version : 2.7.4
R version: 2.15.3
Rpy2 version : 2.3.5
By the way, I am constrained to use Python 2.7.x, rather than Python 3.
What am I doing wrong here?
Thanks for your help,
Nick
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