/Python/Label encoding a column in python

Label encoding a column in python

Label encoding column pandas

import seaborn as sns 
df = sns.load_dataset('iris')
df['species'] = df['species'].astype('category').cat.codes
df.head(3)
'''sepal_length	sepal_width	petal_length	petal_width	species
	5.1					3.5			1.4					0.2			0
	4.9					3.0			1.4					0.2			0
	4.7					3.2			1.3					0.2			0'''

Source: grepper.com

Label encoding in pandas

# Import label encoder
from sklearn import preprocessing
  
# label_encoder object knows how to understand word labels.
label_encoder = preprocessing.LabelEncoder()
  
# Encode labels in column 'species'.
df['species']= label_encoder.fit_transform(df['species'])
  
df['species'].unique()

Source: geeksforgeeks.org

Label encoding of a column in python

import seaborn as sns 
df = sns.load_dataset('iris')
def encode(x):
    for i,j in enumerate(df['species'].unique()):
        if x == j:
            return i

df['species'] = df['species'].apply(lambda x:encode(x))

Source: grepper.com

Similar codes

0 vote245 views1 answer
How do variables work in python
Python
3 votes238 views1 answer
Hwo much does mano house cost in python
Python
44 votes235 views6 answers
Python random string
Python
1 vote278 views10 answers
Python to java converter online
Python
1 vote227 views1 answer
Sftp python
Python
0 vote278 views2 answers
Flask get summernote text
Python Flask
0 vote233 views1 answer
Sort rows by values dataframe
Python
2 votes190 views1 answer
Python array index
Python
0 vote332 views1 answer
Finding Maximum Elements along columns using Python numpy.argmax()
Python
0 vote249 views1 answer
How to send Email verification codes to user in Firebase using Python
Python