[SciPy-User] From 1-D boolean array to integer index

Jacob Biesinger jake.biesinger@gmail....
Tue Oct 11 12:29:07 CDT 2011


Hi all!

This seems a trivial question, but I couldn't find it in the archives.  I
have a 1-D bool array which I'd like to convert to an integer index.  The
best I've come up with is:

>>> int(''.join(['1' if e else '0' for e in sp.array([True, False])]), 2)
2
>>> int(''.join(['1' if e else '0' for e in sp.array([True, False, True])]),
2)
5

Is there an easier way to do this?

Thanks!
--
Jake Biesinger
Graduate Student
Xie Lab, UC Irvine
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