stdDev method

double stdDev()

Returns the corrected standard deviation of the list elements.

• The list must have at least two elements.

Implementation

double stdDev() {
  mustHaveMinLength(2);
  final mean = this.mean();
  double sum = 0.0;
  final it = iterator;
  while (it.moveNext()) {
    sum += math.pow(mean - it.current, 2);
  }
  return math.sqrt(sum / (length - 1));
}