[Solved] The following code throws an error. What is the mistake?import numpy as np arr = np.array([1, 2, 3]) result = np.prod(arr, axis=1) print(result) | NumPy

NumPy - Aggregation Functions

The following code throws an error. What is the mistake?

import numpy as np
arr = np.array([1, 2, 3])
result = np.prod(arr, axis=1)
print(result)

AAxis 1 does not exist for 1D arrays

Bnp.prod() cannot be used on 1D arrays

CMissing parentheses in np.prod

DArray elements must be floats

Step-by-Step Solution

Solution:

Step 1: Check array dimensions
The array is 1D with shape (3,), so it has only axis 0.
Step 2: Understand axis parameter
Using axis=1 causes an error because axis 1 does not exist in 1D arrays.
Final Answer:
Axis 1 does not exist for 1D arrays -> Option A
Quick Check:
1D array has only axis 0 [OK]

Quick Trick: Check array shape before using axis parameter [OK]

Common Mistakes:

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