On 2009-09-08 22:03 PM, sturlamolden wrote:
On 9 Sep, 03:45, hi_roger<rechardc...@gmail.com> wrote:
i know how to select a submatrix using the slice object in numpy. But
how can i select a submatrix
A[i1,i2,i3;j1,j2,j3] (elements in A on line i1,i2,i3 and column
j1,j2,j3 , and i1,i2,i3,j1,j2,j3 are all arbitrary numbers )
You just pass an array of ints for each dimension. If you want a 3x3
submatrix, you must pass in two 3x3 arrays of indices.
Oops! I just responded to the OP saying that you were "almost correct"; but I
was just thinking of your latter 1D example rather than this correct statement.
My apologies.
--
Robert Kern
"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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