A five-fold search reports test_score for each fold.
Your reserved 20% table has never been passed to it. Which evidence is this?
Retrieve earlier concepts before combining them.
This practice: Retrieve earlier concepts before combining them. Next: Retrieval 2 · Workflow evidence retrieval.
Supporting concepts: Respect time →
Remember the idea
Use the inputs and evidence to recover the method. Hints and explained solutions remain collapsed; exact phrasing is not graded.
Hint 1 — Think
A library field name does not redefine which rows were supplied.
Hint 2 — Tools
Fold validation versus the outer final holdout.
Hint 3 — Approach
Trace the population passed into the search before naming the evidence.
Explained solution
It contains scores on each fold’s validation rows. Naming in the library does not change the role of the protected final test.
It contains scores on each fold’s validation rows. Naming in the library does not change the role of the protected final test.
Helpful prior knowledge: Respect time These links are guidance, not locks.
Sources and API context
Examples run with this Playground’s scikit-learn 1.4.2 / Pyodide 0.26.4 runtime.