Pandas Data Series: Convert the first and last character of each word to upper case

Last update on December 21 2024 07:42:36 (UTC/GMT +8 hours)

Write a Pandas program convert the first and last character of each word to upper case in each word of a given series.

Sample Solution :

Python Code :

import pandas as pd
series1 = pd.Series(['php', 'python', 'java', 'c#'])
print("Original Series:")
print(series1)
result = series1.map(lambda x: x[0].upper() + x[1:-1] + x[-1].upper())
print("\nFirst and last character of each word to upper case:")
print(result)

Sample Output:

Original Series:
0       php
1    python
2      java
3        c#
dtype: object

First and last character of each word to upper case:
0       PhP
1    PythoN
2      JavA
3        C#
dtype: object

Explanation:

series1 = pd.Series(['php', 'python', 'java', 'c#']): This line creates a Pandas Series object 'series1' containing four strings representing different programming languages.

result = series1.map(lambda x: x[0].upper() + x[1:-1] + x[-1].upper()): This line applies a lambda function to each element of the Pandas Series object 'series1' using the .map() method. The lambda function takes a string x, capitalizes the first and last character of the string using string indexing, and returns the modified string.

Python-Pandas Code Editor:

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

Previous: Write a Pandas program to get the positions of items of a given series in another given series.
Next: Write a Pandas program to calculate the number of characters in each word in a given series.