w3resource

Pandas DataFrame: Drop a list of rows from a specified DataFrame

Pandas: DataFrame Exercise-36 with Solution

Write a Pandas program to drop a list of rows from a specified DataFrame.

Sample data:
Original DataFrame
col1 col2 col3
0 1 4 7
1 4 5 8
2 3 6 9
3 4 7 0
4 5 8 1
New DataFrame after removing 2nd & 4th rows:
col1 col2 col3
0 1 4 7
1 4 5 8
3 4 7 0

Sample Solution :

Python Code :

import pandas as pd
import numpy as np
d = {'col1': [1, 4, 3, 4, 5], 'col2': [4, 5, 6, 7, 8], 'col3': [7, 8, 9, 0, 1]}
df = pd.DataFrame(d)
print("Original DataFrame")
print(df)
print("New DataFrame after removing 2nd & 4th rows:")
df = df.drop(df.index[[2,4]])
print(df)

Sample Output:

Original DataFrame
   col1  col2  col3
0     1     4     7
1     4     5     8
2     3     6     9
3     4     7     0
4     5     8     1
New DataFrame after removing 2nd & 4th rows:
   col1  col2  col3
0     1     4     7
1     4     5     8
3     4     7     0              

Explanation:

The above code creates a Pandas DataFrame ‘df’ using a Python dictionary ‘d’. The DataFrame has three columns: 'col1', 'col2', and 'col3'.

df = df.drop(df.index[[2,4]]): This code drops rows with indices 2 and 4 using the drop() method with the index parameter set to a list of indices to drop.

Finally print() function prints the resulting DataFrame with the two rows dropped.

Python-Pandas Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Pandas program to count the NaN values in one or more columns in DataFrame.
Next: Write a Pandas program to reset index in a given DataFrame.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Become a Patron!

Follow us on Facebook and Twitter for latest update.

It will be nice if you may share this link in any developer community or anywhere else, from where other developers may find this content. Thanks.

https://w3resource.com/python-exercises/pandas/python-pandas-data-frame-exercise-36.php