public function dataProviderForSpearmansRho()
{
return [[[56, 75, 45, 71, 62, 64, 58, 80, 76, 61], [66, 70, 40, 60, 65, 56, 59, 77, 67, 63], 0.6727], [[1, 2, 3, 4, 5], [2, 3, 4, 4, 6], 0.975], [[4, 10, 3, 1, 9, 2, 6, 7, 8, 5], [5, 8, 6, 2, 10, 3, 9, 4, 7, 1], 0.6848], [[13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25], [26, 25, 18, 33, 70, 55, 50, 49, 70, 80, 76, 74, 73], 0.8583], [[1, 5, 2, 5, 2], [2, 2, 3, 1, 3], -0.325]];
}