<!-- PCU: ch07-model-selection | contract: contracts/apr-book-ch07-v1.yaml -->
<!-- Example: cargo run -p aprender-core --example ch07_model_selection -->
<!-- Status: enforced -->
# Chapter 07: Model Selection and Evaluation
> Contract: [`apr-book-ch07`](../../../contracts/apr-book-ch07-v1.yaml)
Run: `cargo run -p aprender-core --example ch07_model_selection`
```rust,ignore
{{#include ../../../crates/aprender-core/examples/ch07_model_selection.rs}}
```