NumPy - Indexing and Slicing
What is the output of the following code?
import numpy as np arr = np.array([3, 8, 1, 6, 0]) result = arr[arr > 3]
What is the output of the following code?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Identify elements greater than 3 in arr
Elements are 8 and 6.Step 2: Extract these elements using boolean indexing
arr[arr > 3] returns [8 6].Final Answer:
[8 6] -> Option AQuick Check:
Elements > 3 = [8 6] [OK]
Quick Trick: Boolean indexing returns elements matching condition [OK]
Common Mistakes:
- Including elements equal to 3
- Including elements less than 3
- Misreading the array values
Master "Indexing and Slicing" in NumPy
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