In this python pandas program, we will reverse the order of columns in a DataFrame using the pandas library.
Steps to solve the program
- Import pandas library as pd.
- Create a dataframe using pd.DataFrame().
- Reverse the order of columns in the dataframe using df.loc[:,::-1].
- Print the output.
import pandas as pd
import numpy as np
d = {'Sr.no.':[1,2,3,4],'Name':['Alex','John','Peter','Klaus'],'Age':[30,27,29,33],'Salary':[50000,65000,58000,66000]}
df = pd.DataFrame(d)
print(df)
print("Reverse column order:")
print(df.loc[:,::-1])
Output :
0 Sr.no. Name Age Salary
0 1 Alex 30 50000
1 2 John 27 65000
2 3 Peter 29 58000
3 4 Klaus 33 66000
Reverse column order:
Salary Age Name Sr.no.
0 50000 30 Alex 1
1 65000 27 John 2
2 58000 29 Peter 3
3 66000 33 Klaus 4