getTemperatureRange method
Get temperature range (min, max).
Implementation
(double min, double max) getTemperatureRange() {
var min = data.first.temperature;
var max = data.first.temperature;
for (final point in data) {
if (point.temperature < min) min = point.temperature;
if (point.temperature > max) max = point.temperature;
}
return (min, max);
}