NumPy - Indexing and Slicing
Which of the following is the correct syntax to select elements equal to 5 from a numpy array
arr using boolean indexing?Which of the following is the correct syntax to select elements equal to 5 from a numpy array arr using boolean indexing?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Recall correct equality operator in numpy
Use double equals == for comparison, not single = or triple ===.Step 2: Check options for correct syntax
Only arr[arr == 5] uses arr[arr == 5], which is correct syntax.Final Answer:
arr[arr == 5] -> Option CQuick Check:
Equality check uses == in boolean indexing [OK]
Quick Trick: Use == for equality in boolean indexing [OK]
Common Mistakes:
- Using single = instead of ==
- Using === which is invalid in Python
- Using != which means not equal
Master "Indexing and Slicing" in NumPy
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore NumPy Quizzes