[Numpy-discussion] indexing question
Mon Jun 21 14:09:30 CDT 2010
On Mon, Jun 21, 2010 at 14:01, Neal Becker <firstname.lastname@example.org> wrote:
> Can I find an efficient way to do this?
> I have a 2d array, A, 80 rows by 880 columns.
> I have a vector, B, of length 80, with scalar indexes.
I assume you mean 880.
> I want a vector output C where
> C[i] = A[b[i],i] (i=0,879)
C = A[b, np.arange(880)]
"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
-- Umberto Eco
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