PYTHON

pandas rename index

df.index = df.index.rename('new_index_name')

# Source: https://pandas.pydata.org/docs/reference/api/pandas.Index.rename.html

dataframe index rename

# For index name:
df = df.rename(index={'old_name': 'new_name'})
# or
df.index = df.index.rename('new_name')
# or 
df.index.rename('new_name', inplace=True)

# For column name:
df = df.rename(columns={'old_name': 'new_name'})
#
df.columns = df.columns.rename('new_name')
# or
df.columns.rename('new_name', inplace=True)

pandas rename index values

df.rename(index={'alpha': 'mu'})

pandas rename column by index

import pandas as pd
  
# Sample DataFrame
df = pd.DataFrame({'a': [1, 2], 'b': [3, 4]})
  
# Changing columns name with index number
su = df.rename(columns={df.columns[1]: 'new'})
  
# Display
display(su)

pd df rename along index

df.rename({1: 2, 2: 4}, axis='index')