One hot encoding

One hot encoding python pandas

y = pd.get_dummies(df.Countries, prefix='Country')
print(y.head())
# from here you can merge it onto your main DF

Source: stackabuse.com

One hot encoding numpy

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

One hot encoding

from sklearn.preprocessing import OneHotEncoder
encoder = preprocessing.OneHotEncoder(handle_unknown='ignore')
y = np.array([1, 2, 1, 3])
y = y.reshape(-1,1)
encoder.fit(y)
y_oh = encoder.transform(y).toarray()
print(y_oh)
>>[[1. 0. 0.]
 [0. 1. 0.]
 [1. 0. 0.]
 [0. 0. 1.]]

Similar codes

2 votes111 views4 answers
Django login required
Python
6 votes92 views5 answers
Python open folder in explorer
Python
4 votes109 views4 answers
Pandas to python datetime
Python
0 vote182 views1 answer
Python program to switch first and second characters in a string
Python
0 vote110 views1 answer
Django model different schema
Python
13 votes104 views2 answers
How to convert python input to int
Python
1 vote101 views1 answer
Python - Change List Items
Python
0 vote126 views1 answer
How to import discord in python rewrite vscode
Python
0 vote111 views1 answer
Df.sample(frac=1)
Python
2 votes137 views2 answers
How to replace a character of a string
Python