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

NumPy - Aggregation Functions

Identify the error in this code snippet:

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

AAxis 1 is invalid for 1D array

Bnp.cumsum() requires two arguments

Carr should be a list, not numpy array

DMissing parentheses in print statement

Step-by-Step Solution

Solution:

Step 1: Check array dimensions
arr is 1D with shape (3,). Axis 1 does not exist.
Step 2: Understand axis parameter validity
Axis must be 0 or None for 1D arrays; axis=1 causes an error.
Final Answer:
Axis 1 is invalid for 1D array -> Option A
Quick Check:
Axis must be valid for array dimension [OK]

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

Common Mistakes:

Master "Aggregation Functions" in NumPy

9 interactive learning modes - each teaches the same concept differently

More NumPy Quizzes

Identify the error in this code snippet: