public function getTemperatures()
{
$xAxis = array('0h', '1h', '2h', '3h', '4h', '5h', '6h', '7h', '8h', '9h', '10h', '11h', '12h', '13h', '14h', '15h', '16h', '17h', '18h', '19h', '20h', '21h', '22h', '23h');
$temperatureValues = array_slice(range(50, 90), 0, count($xAxis));
if (!self::$disableRandomness) {
shuffle($temperatureValues);
}
$temperatures = array();
foreach ($xAxis as $i => $xAxisLabel) {
$temperatures[$xAxisLabel] = $temperatureValues[$i];
}
return DataTable::makeFromIndexedArray($temperatures);
}