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Why does np.squeeze() sometimes not change the shape of an array even when called?

hard📝 Conceptual Q10 of 15
NumPy - Array Manipulation
Why does np.squeeze() sometimes not change the shape of an array even when called?
ABecause the array has no axes with size 1 to remove
BBecause squeeze only works on 1D arrays
CBecause squeeze changes data type, not shape
DBecause squeeze requires an axis parameter to work
Step-by-Step Solution
Solution:

  1. Step 1: Understand squeeze behavior

    np.squeeze() removes only axes with size 1.

  2. Step 2: Reason why shape may not change

    If no axes have size 1, squeeze has nothing to remove, so shape stays same.

  3. Final Answer:

    Because the array has no axes with size 1 to remove -> Option A

  4. Quick Check:

    Squeeze only removes size 1 axes [OK]
Quick Trick: Squeeze only removes axes of length 1 [OK]
Common Mistakes:
  • Thinking squeeze works on all arrays
  • Assuming it changes data type
  • Believing axis parameter is mandatory

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