variance static method

num variance(
  1. List<num> values
)

Calculates the variance of a list of values.

Implementation

static num variance(List<num> values) {
  if (values.isEmpty) throw ArgumentError('The list cannot be empty.');
  final m = mean(values);
  return mean(values.map((value) => math.pow(value - m, 2)).toList());
}