Advanced plus 4: Pivot into a heatmap
Scenario
You are a data analyst in the Environment team, working with water_tests data. A pivot table turns rows into a grid; a heatmap colours it.
Question
Write your code in the editor, press Check my answer, then try changing one small thing.
Your task
- Write each line of your code
- Press Check my answer
- Change one value and check again
Advanced · Record Counting & Duplicate Removal — question 14 of 30
1. Choose your dataset
Pick an industry and a size. Your code and results change to match.
Advanced plus 4: Pivot into a heatmap
Write your code in the editor, press Check my answer, then try changing one small thing.
Your code cell is below. Press Check my answer to run the cell — the result appears as Out [1].
💡 Explain my whole code, line by line (hover any word in the editor for a tip)
🌈 In short — no coding words
Altogether: this script runs top to bottom, one line at a time, building up the answer step by step.
Dataset & schema
water_tests
The tiny starter data. Bigger data scrolls.
Fields
| test_id | river | ph |
|---|---|---|
| W1 | Vaal | 7 |
| W2 | Orange | 6 |
| W3 | Vaal | 8 |
| W4 | Tugela | 5 |
Environment data only.
$ Press “Check my answer” — results appear here.Your next steps
Each item turns green when your answer includes it.
- Uses pivot_table
- Uses sns.heatmap