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

0 vote197 views1 answer
The Bytearray Type
Python
3 votes135 views2 answers
Find number of vowels in string python
Python
0 vote125 views1 answer
Importing modules in kv lang
Python
1 vote189 views2 answers
Find the highest 3 values in a dictionary.
Python
0 vote164 views1 answer
Mechanize python XE #25
Python
-2 votes152 views1 answer
How to comment out lines of code in python
Python
157 votes230 views3 answers
Command to update pip
Python
0 vote157 views1 answer
Minimum ele
Python
0 vote128 views2 answers
Download python on wsl
Python
0 vote161 views3 answers
ModuleNotFoundError: No module named 'numpy.testing.decorators'
Python