Function test_number_of_bins

crates/openquant/tests/codependence.rs:95–103

()

#[test]
fn test_number_of_bins() {
    let (x, y_1, _) = load_series();
    let n_bins_x = get_optimal_number_of_bins(x.len(), None).expect("n bins x");
    let corr = corrcoef(&x, &y_1);
    let n_bins_x_y = get_optimal_number_of_bins(x.len(), Some(corr)).expect("n bins x y");

    assert_eq!(n_bins_x, 15);
    assert_eq!(n_bins_x_y, 9);
}

/// A correlation of -1 used to reach the bivariate bin formula, divide by zero, and ask for
/// isize::MAX bins, which panicked with "capacity overflow" inside the histogram.