public function testOneWayExceptionDifferentSampleSizes()
{
$sample1 = [1, 2, 3];
$sample2 = [3, 4, 5, 6];
$sample3 = [5, 6, 7, 8, 9];
$this->setExpectedException('MathPHP\\Exception\\BadDataException');
ANOVA::oneWay($sample1, $sample2, $sample3);
}