Function Mode

math/mode.go:21–47

(numbers []T)

var ErrEmptySlice = errors.New("empty slice provided")

func Mode[T constraints.Number](numbers []T) (T, error) {

	countMap := make(map[T]int)

	n := len(numbers)

	if n == 0 {
		return 0, ErrEmptySlice
	}

	for _, number := range numbers {
		countMap[number]++
	}

	var mode T
	count := 0

	for k, v := range countMap {
		if v > count {
			count = v
			mode = k
		}
	}

	return mode, nil

}