Okay, 
Adding one line in the histogram.py script fixed it.
            a = r.c(a)


r.pdf( out_fname, 8, 8 )
            a = r.c(a)
            r.hist( a, probability=True, main=title, xlab=xlab, breaks=breaks )



On Oct 19, 2010, at 11:16 AM, Victor Ruotti wrote:

Hi,
I installed both rpy and rpy2 following the directions in their documentation.
I no longer get the error cant find the rpy module.

But now it looks as there is an error in from the python program,
histogram.py

Any ideas?
Thanks,
Victor


                 An error occurred running this job: global name 'array' is not defined