std method
Implementation
double std(List<double> data) {
var stdSum = 0.0;
final dataAv = data.reduce((l, r) => l + r) / data.length;
final length = data.length;
for (final sample in data) {
stdSum += pow(sample - dataAv, 2);
}
final std = sqrt(stdSum / length);
return std;
}