pandas dataframe set header code example

Example 1: how to create new header of a dataframe in python

pythonCopy# python 3.x
import pandas as pd
import numpy as np

df = pd.DataFrame(data=np.random.randint(0, 10, (6,4)))

df.columns=["a", "b", "c", "d"]
print(df)

Example 2: how to change a header in pandas

# Can just use df.columns to rename

>>> df = pd.DataFrame({'$a':[1,2], '$b': [10,20]})
>>> df.columns = ['a', 'b']
>>> df
   a   b
0  1  10
1  2  20