Unit 3 · Lesson 3.1 · Start1 / 12
Unit 3 · Lesson 3.1
3.1
Why evaluate, and the train-test split
The leaf app scored 99% at the exhibition. In the orchard it was wrong again and again. Both were true.
Today you will
- Split data into training and testing
- Catch a model that memorised
- Say why a test must use unseen data
40 min On the laptop