PhpSpreadsheet/tests/data/Calculation/Statistical/MEDIAN.php

<?php

return [
    [
        8.0,
        1, 4.5, 7, 8, 9, 13, 14,
    ],
    [
        8.5,
        1, 4.5, 7, 8, 9, 13, 14, 12,
    ],
    [
        8.0,
        1, 4.5, 7, 8, 9, 13, 14, '',
    ],
];