one hot encoding

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showing results for - "one hot encoding"
Andreas
25 Sep 2017
1y = pd.get_dummies(df.Countries, prefix='Country')
2print(y.head())
3# from here you can merge it onto your main DF
Ashley
10 Oct 2020
1  labels = (np.arange(num_labels) == labels[:,None]).astype(np.float32)
Jania
02 Sep 2018
1from sklearn.preprocessing import OneHotEncoder
2encoder = preprocessing.OneHotEncoder(handle_unknown='ignore')
3y = np.array([1, 2, 1, 3])
4y = y.reshape(-1,1)
5encoder.fit(y)
6y_oh = encoder.transform(y).toarray()
7print(y_oh)
8>>[[1. 0. 0.]
9 [0. 1. 0.]
10 [1. 0. 0.]
11 [0. 0. 1.]]
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