change header of a column in dataframe code example
Example 1: pandas rename column
df.rename(columns={"old_col1": "new_col1", "old_col2": "new_col2"}, inplace=True)
Example 2: rename dataframe index column pandas
df.index.names = ['new_name']
df.rename(columns={"old_col1": "new_col1", "old_col2": "new_col2"}, inplace=True)
df.index.names = ['new_name']