v1.2.1

• DynamicNumber:

  • Added min, max and cast<N>().

• New StatisticsBigInt and StatisticsDynamicNumber.

• New IterableBigIntExtension.

• Numeric extensions:

  • Added sum2 and mean2: returns a record with extra parameter allEqualsTo.
  • mean and standardDeviation are computed in a way that minimizes floating-point precision errors.

• IterableExtension:

  • Added counts, countsSorted and mostFrequent.

• statistics_base_test.dart: improved numeric tests.