>>> a
array([0, 0])
>>> b
array([0, 1, 0, 1, 0])
>>> c
array([1, 1, 1, 1, 1])
Well for this particular example you could do
a=array([len(b)-sum(b), sum(b)])
Since you are just counting the ones and zeros.
This next one is a little closer for the case when c is not just a bunch of 1's but you still have to know how the highest number in b.
a=array([sum(c[b==0]), sum(c[b==1]), ... sum(c[b==N]) ] )
So it sort of depends on your ultimate goal.
Greg
--
Linux. Because rebooting is for adding hardware.
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