[Tutor] comparing two numpy arrays

Andy Cheesman Andy.cheesman at bristol.ac.uk
Tue Aug 7 13:19:36 CEST 2007


Hi people,

If I've two numpy arrays, is there a non-looping way of finding common
values. (the example below has identical shapes for the arrays but this
may not be the case in my scenario)

e.g
a = array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
b = array([ 5,  6,  7,  8,  9, 10, 11, 12, 13, 14])

answer = array([ 5,6,7,8,9])

Thanks

Andy


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