[Numpy-discussion] Setting small numbers to zero.

Keith Goodman kwgoodman@gmail....
Wed Mar 17 10:56:05 CDT 2010


On Wed, Mar 17, 2010 at 8:51 AM, gerardob <gberbeglia@gmail.com> wrote:
>
> How can i modified all the values of a numpy array whose value is smaller
> than a given epsilon to zero?
>
> Example
> epsilon=0.01
> a = [[0.003,2][23,0.0001]]
>
> output:
> [[0,2][23,0]]

Here's one way:

>> a = np.array([[0.003,2],[23,0.0001]])
>> a[np.abs(a) < 0.01] = 0
>> a

array([[  0.,   2.],
       [ 23.,   0.]])


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