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package stats
import "sort"
// Average returns the average value
func Average(values []float64) float64 {
if len(values) == 0 {
return 0
}
var val float64
for _, point := range values {
val += point
}
return val / float64(len(values))
}
// Sum returns the sum of all the given values
func Sum(values []float64) float64 {
var val float64
for _, point := range values {
val += point
}
return val
}
// Percentiles returns a map containing the asked for percentiles
func Percentiles(values []float64, percentiles map[string]float64) map[string]float64 {
sort.Float64s(values)
results := map[string]float64{}
for label, p := range percentiles {
results[label] = values[int(float64(len(values))*p)]
}
return results
}
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