Function sample_log_uniform

crates/openquant/src/hyperparameter_tuning.rs:77–92

(
    low: f64,
    high: f64,
    rng: &mut R,
)

}

pub fn sample_log_uniform<R: Rng + ?Sized>(
    low: f64,
    high: f64,
    rng: &mut R,
) -> Result<f64, String> {
    if low <= 0.0 || high <= 0.0 {
        return Err("log-uniform bounds must be strictly positive".to_string());
    }
    if low >= high {
        return Err("log-uniform low must be < high".to_string());
    }
    let log_low = low.ln();
    let log_high = high.ln();
    let draw = rng.gen_range(log_low..log_high);
    Ok(draw.exp())
}

pub fn classification_score(
    y_true: &[f64],