Intro to Data Science · Analysis · Lesson 10 of 12
Sorting and Ranking
Concept
Sorting and Ranking
sort_values() reorders rows by a column, useful for finding top or bottom performers in a dataset.
By the end of this lesson
- Explain the core idea behind Sorting and Ranking.
- Predict output before running a change.
- Test one realistic and one unusual input.
- Use the result to make the next decision.
How to study this page
- 1. Read one concept.
- 2. Change the example.
- 3. Run, compare, and explain.
- 4. Complete the challenge below.
Self-check before continuing
Without looking at the example, describe what changes when you modify one input in Sorting and Ranking. Then reopen the editor and prove your explanation with a small test.
You are ready to continue when you can predict, test, and explain the result.
Your turn
Write code that finds the 3 lowest scores in a dataset.
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