CatBoost Rust Package

Basic usage example

1. Add a dependency to your Cargo.toml: [dependencies] catboost = { git = "https://github.com/catboost/catboost" }

2. Now you can apply pretrained model in your code: ```rust // Bring catboost module into the scope use catboost;

fn main() { // Load the trained model let model = catboost::Model::load("tmp/model.bin").unwrap();

println!("Number of cat features {}", model.get_cat_features_count());
println!("Number of float features {}", model.get_float_features_count());

// Apply the model
let prediction = model
    .calc_model_prediction(
        vec![
            vec![-10.0, 5.0, 753.0],
            vec![30.0, 1.0, 760.0],
            vec![40.0, 0.1, 705.0],
        ],
        vec![
            vec![String::from("north")],
            vec![String::from("south")],
            vec![String::from("south")],
        ],
    )
    .unwrap();
println!("Prediction {:?}", prediction);

} ```

Documentation

Run cargo doc --open in catboost/rust-package directory.

Tests

Run cargo test in catboost/rust-package directory.

To run tests with sanitizer, uncomment line "--sanitize=address", in catboost/rust-package/catboost-sys/build.rs and run RUSTFLAGS="-Z sanitizer=address" cargo +nightly test.