[Numpy-discussion] simple question

Christopher Barker Chris.Barker at noaa.gov
Thu Jul 6 11:35:43 CDT 2006



Mathew Yeates wrote:
> ohhhh. I was looking at using "where"

There's nothing wrong with where:

 >>> y = N.asmatrix(N.rand(3,3))
 >>> y
matrix([[ 0.29741635,  0.78756994,  0.641378  ],
        [ 0.0198837 ,  0.71677631,  0.76068183],
        [ 0.84904382,  0.80169706,  0.23877389]])
 >>> x = N.asmatrix(N.where(y > 0.5, 1, 0))
 >>> x
matrix([[0, 1, 1],
        [0, 1, 1],
        [1, 1, 0]])

And did you really mean matrix? or would 2-d arrays be fine?

-CHB

-- 
Christopher Barker, Ph.D.
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