[SciPy-Dev] slices of sparse matrixes

Matt Terry matt.terry@gmail....
Tue Feb 7 12:31:53 CST 2012


sparse matrixes are *matrixes* not *ndarrays*  The two slice differently.

>>> d = numpy.matrix( (4,3) )
>>> s = scipy.sparse.lil_matrix(d)
>>> d[:,0].shape == s[:,0].shape
True

It seems the best way to answer your own dumb question is to ask it publicly : )

-matt


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