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 vote119 views1 answer
How to extract data from telegram using python
Python
1 vote173 views1 answer
Flask define template folder
Python Flask
0 vote132 views1 answer
Splitting on basis of regex python
Python
1 vote115 views1 answer
TypeError: exceptions must derive from BaseException
Python
123 votes122 views6 answers
Input python
Python
0 vote165 views1 answer
Flask app with spark
Python Flask
0 vote146 views1 answer
Slug in redirect django
Python Django
0 vote119 views1 answer
Python save string to text
Python
0 vote148 views1 answer
Django.core.exceptions.ImproperlyConfigured: Field name is not valid for model
Python Django
1 vote119 views1 answer
Python for/else
Python