Function auto_train_thorough 

pub fn auto_train_thorough(
    df: &DataFrame,
    target_col: &str,
) -> Result<AutoModel>

Train thoroughly with extensive tuning (for best accuracy)

Uses TuningLevel::Thorough which performs comprehensive hyperparameter search. Takes longer but may find better configurations, especially for complex datasets.

Example

use treeboost::auto_train_thorough;

// Extensive search for production model
let model = auto_train_thorough(&df, "target")?;