Np one hot encoding

One hot encoding numpy

  labels = (np.arange(num_labels) == labels[:,None]).astype(np.float32)

Np one hot encoding

>>> 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.]])

Source: stackoverflow.com

Similar codes

36 votes115 views2 answers
ModuleNotFoundError: No module named 'sklearn'
Python
-1 vote89 views2 answers
Python selenium find element by text
Python
0 vote109 views1 answer
List lambda functions boto3
Python
0 vote101 views1 answer
Python array set key value
Python
8 votes99 views3 answers
Cool Things To Do With Python
Python
4 votes141 views2 answers
Python turtle clear screen
Python
23 votes103 views2 answers
How to check in which directory python in running
Python
0 vote106 views2 answers
Generate secret key python
Python
1 vote100 views1 answer
Variable inside class not detecting global variable in python
Python
0 vote109 views1 answer
Append vector to vector python
Python