func CalculateMetricStatisticsBasedOnDataAndPeriod()

in validator/validators/performance/performance_stats.go [26:63]

• 31 lines of code
• 5 McCabe index (conditional complexity)

func CalculateMetricStatisticsBasedOnDataAndPeriod(data []float64, dataPeriod float64) Stats {
	length := len(data)
	if length == 0 {
		return Stats{}
	}

	sort.Float64s(data)

	min := data[0]
	max := data[length-1]

	sum := 0.0
	for _, value := range data {
		sum += value
	}

	avg := sum / float64(length)

	if length < 99 {
		log.Println("Note: less than 99 values given, p99 value will be equal the max value")
	}
	p99Index := int(float64(length)*.99) - 1
	p99Val := data[p99Index]

	stdDevSum := 0.0
	for _, value := range data {
		stdDevSum += math.Pow(avg-value, 2)
	}

	return Stats{
		Average: avg,
		Max:     max,
		Min:     min,
		P99:     p99Val,
		Std:     math.Sqrt(stdDevSum / float64(length)),
		Period:  int(dataPeriod / float64(length)),
	}
}