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1d array to one hot

Gorgeous Grasshopper answered on May 2, 2020 Popularity 7/10 Helpfulness 5/10

answer 1d array to one hot

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1d array to one hot

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>>> a = np.array([1, 0, 3])
>>> b = np.zeros((a.size, a.max()+1))
>>> b[np.arange(a.size),a] = 1
>>> b
array([[ 0.,  1.,  0.,  0.],
       [ 1.,  0.,  0.,  0.],
       [ 0.,  0.,  0.,  1.]])

Popularity 7/10 Helpfulness 5/10 Language python

Source: stackoverflow.com

Tags: python

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Contributed on May 02 2020

Gorgeous Grasshopper

0 Answers Avg Quality 2/10

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1d array to one hot

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>>> a = np.array([1, 0, 3])
>>> b = np.zeros((a.size, a.max()+1))
>>> b[np.arange(a.size),a] = 1
>>> b
array([[ 0.,  1.,  0.,  0.],
       [ 1.,  0.,  0.,  0.],
       [ 0.,  0.,  0.,  1.]])

Popularity 1/10 Helpfulness 1/10 Language python

Source: nullorempty.org

Tags: python

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Contributed on Mar 13 2022

Ugliest Unicorn

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1d array to one hot

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