[Numpy-discussion] FW: numpy array matching
Chris Barker
cbarker at jps.net
Wed Mar 14 13:13:13 EST 2001
Chris Barker wrote:
> >>> t = array(['abcd','aacd','ddfa','qqcd'])
>
> >>> t2 = t.astype(UnsignedInt8)
>
> >>> nonzero(equal(t2,ord('c'))[:,2])
>
> array([0, 1, 3])
OOPS. For a little better performance:
>>> nonzero(equal(t2[:,2],ord('c')))
array([0, 1, 3])
--
Christopher Barker,
Ph.D.
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