Re: [Numpy-discussion] indexing (compared to matlab)

This is probably the most asked single question. Use ``ix_``. Example below.

Cheers, Alan Isaac

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import numpy as np a=np.floor(np.random.rand(5,5)*10) ind=[1,3] a[np.ix_(ind,ind)]+=100 a

array([[ 9., 1., 2., 8., 5.], [ 2., 102., 7., 109., 0.], [ 8., 0., 2., 2., 2.], [ 1., 103., 5., 101., 7.], [ 1., 4., 7., 2., 3.]])

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