NumPy - Indexing and Slicing
What does the
step value control in a NumPy array slice like arr[start:stop:step]?What does the step value control in a NumPy array slice like arr[start:stop:step]?
easy📝 Conceptual Q11 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the slice syntax
The slicearr[start:stop:step]selects elements fromstartup to but not includingstop, moving bystep.Step 2: Identify the role of
Thestepstepdetermines how many elements to skip between each selected element. For example,step=2picks every second element.Final Answer:
How many elements to skip between each selected element -> Option AQuick Check:
Step controls skipping elements = A [OK]
Quick Trick: Step is the gap between elements in slicing [OK]
Common Mistakes:
- Confusing step with start or stop index
- Thinking step is total count of elements
- Ignoring that step can be negative
Master "Indexing and Slicing" in NumPy
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