Pandas Series Add_prefix Method

Introduction

The add_prefix() method in Pandas is used to add a prefix string to the labels of a Series object. It allows us to easily modify the index names of a Series by adding a string label at the beginning of each index.

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Skills Graph

Create a Series

First, let's import the necessary Pandas library and create a Series object. We will use this Series to demonstrate the add_prefix() method.

import pandas as pd

s = pd.Series([1, 2, 3])
print("Original Series:")
print(s)

Update the Series labels

Next, we can use the add_prefix() method to prefix a string to each label of the Series.

prefixed_series = s.add_prefix('index_')
print("Updated Series:")
print(prefixed_series)

Summary

By using the add_prefix() method, we can easily modify the labels of a Series by adding a prefix string at the beginning of each label. This can be useful when we want to update the index names of a Series for better identification or organization. The add_prefix() method returns a new Series object with the updated labels.