getMedian method
Implementation
double getMedian(List<double> data) {
var medVal = 0.0;
// TODO(chan150): 성능 최적화
data.sort();
if (data.length.isOdd) {
medVal = data[(data.length - 1) ~/ 2];
} else {
medVal = (data[data.length ~/ 2 - 1] + data[data.length ~/ 2]) / 2;
}
return medVal;
}