public function dataProviderForYHat()
{
return [[[[1, 2], [2, 3], [4, 5], [5, 7], [6, 8]], [1.82558139534879, 3.04651162790689, 5.48837209302309, 6.70930232558119, 7.93023255813929]], [[[61, 105], [62, 120], [63, 120], [65, 160], [65, 120], [68, 145], [69, 175], [70, 160], [72, 185], [75, 210]], [108.19, 115.16, 122.13, 136.06, 136.06, 156.97, 163.94, 170.91, 184.84, 205.75]]];
}