[Solved] Identify the error in this code snippet:import numpy as np arr = np.array([[1, 2], [3, 4]]) cum_sum = np.cumsum(arr, axis=3) print(cum_sum) | NumPy

NumPy - Aggregation Functions

Identify the error in this code snippet:

import numpy as np
arr = np.array([[1, 2], [3, 4]])
cum_sum = np.cumsum(arr, axis=3)
print(cum_sum)

AAxis 3 is out of bounds for a 2D array

Bnp.cumsum() cannot be used on 2D arrays

CThe array must be flattened before applying np.cumsum()

DThe code is correct and will run without errors

Step-by-Step Solution

Solution:

Step 1: Check array dimensions
The array arr is 2D with shape (2, 2).
Step 2: Validate axis parameter
Axis=3 refers to the 4th dimension, which does not exist in a 2D array.
Step 3: Resulting error
This causes an 'axis out of bounds' error.
Final Answer:
Axis 3 is out of bounds for a 2D array -> Option A
Quick Check:
Confirm array ndim and axis value compatibility [OK]

Quick Trick: Axis must be less than array dimensions [OK]

Common Mistakes:

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