[Numpy-discussion] matrix operation

Ernest Adrogué eadrogue@gmx....
Wed Mar 17 13:53:48 CDT 2010


17/03/10 @ 11:47 (-0700), thus spake gerardob:
> 
> Let A and B be two n x n matrices.
> 
> I would like to have another n x n  matrix C such that
> C_ij = min {A_ij, B_ij}
> 
> Example:
> A = numpy.array([[2,3],[10,12]])
> B = numpy.array([[1,4],[9,13]])
> 
> Output 
> 
> C = [[1,3],[9,12]]
> 
> The function min(axis) of numpy seems to be only unary.

Try numpy.minimum:

In [7]: np.minimum(A, B)
Out[7]: 
array([[ 1,  3],
       [ 9, 12]])


> Thanks.
> 
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