Pandas Series Bfill Method

Introduction

In this lab, we will learn about the Python Pandas Series bfill() method. This method is used to fill missing values or null values in a pandas Series backward. It returns a new Series with the missing values filled, or None if the inplace parameter is set to True.

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Skills Graph

Import the required libraries

First, we need to import the pandas library to use the Series.bfill() method. Here's an example of how we can import it:

import pandas as pd

Create a Series with missing values

Next, we need to create a pandas Series with some missing values. We can use the pd.Series() function to create a new Series. Here's an example:

series = pd.Series([None, 5, None, 10])

Use the Series.bfill() method

Now, we can use the Series.bfill() method to fill the missing values backward in the Series. This method fills the null or missing values with the next non-null value in the Series. Here's an example:

filled_series = series.bfill()

Print the filled series

Finally, we can print the filled Series to see the result. Here's an example:

print(filled_series)

Summary

In this lab, we learned how to use the Python Pandas Series.bfill() method to fill missing values or null values backward in a pandas Series. This method is useful when we want to replace missing values with the next non-null value in the Series. By following the steps outlined in this lab, we can effectively fill missing values in a Series and perform further analysis or computations.