2886. Change Data Type

DataFrame students

Column Name	Type
student_id	int
name	object
age	int
grade	float

Instructions

• Write a solution to correct the errors.
• The grade column is stored as floats, convert it to integers.
• The result format is in the following example.

Example

Input:

DataFrame students

student_id	name	age	grade
1	Ava	6	73.0
2	Kate	15	87.0

Output:

student_id	name	age	grade
1	Ava	6	73
2	Kate	15	87

Explanation:

The data types of the column grade is converted to int.

Submissions

import pandas as pd

def changeDatatype(students: pd.DataFrame) -> pd.DataFrame:
    students['grade'] = students['grade'].astype(int)
    return students

Explanation

Python (Pandas)

Submitted by @noeyislearning

• import pandas as pd: Import the pandas library to work with DataFrames.
• def changeDatatype(students: pd.DataFrame) -> pd.DataFrame: Define a function that takes a DataFrame as input and returns a DataFrame.
• students['grade'] = students['grade'].astype(int): Convert the grade column to integers using the astype method.
• return students: Return the updated DataFrame.