Machine learning
Can a computer tell two flowers apart?
The Case. Given just a flower's petal measurements, can a computer guess its species — after only ever seeing examples, never being told the rules? That's machine learning — the same idea behind an app that names a plant from a photo — and you're about to train one for real.
Your tools. scikit-learn is a real AI toolkit. We train a model on most of the flowers, then test it on ones it has never seen.
Investigate. Press Run (the AI library loads the first time — give it a moment). It prints how often the computer guessed right.
- Why do we hold back test data instead of testing on what it learned?
- Change
n_neighbors— does the score change?
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Need a hint?
train_test_split holds back 30% so we can test the model on flowers it never trained on — that's how we know it really learned.