Functions in Python
📘 Python for Data Science
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📅 Nov 14, 2025
⏱ Estimated reading time: 1 min
Defining a Function
def greet():
print("Hello!")
Function with Parameters
def add(a, b):
return a + b
Default Arguments
def area(radius, pi=3.14):
return pi * radius * radius
Keyword Arguments
print(area(pi=3.1416, radius=5))
Importance in Data Science
Functions help modularize tasks like:
- Data cleaning
- Feature engineering
- Model evaluation
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