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util.go
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util.go
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package log
import (
"strings"
"sort"
)
func getAS(id string) string {
// We assume that ID is of form [AS].[NBR]
return strings.Split(id, ".")[0]
}
func getPercentile(percentile float64, data []int) float64 {
norm := normalize(data)
idx := int(float64(len(norm)) * percentile / 100.0)
if idx >= len(norm) {
idx = len(norm) - 1
}
return float64(norm[idx])
}
func getAverage(data []int) float64 {
norm := normalize(data)
var sum int64
var ctr int
for _, v := range norm {
sum += int64(v)
ctr += 1
}
return float64(sum) / float64(ctr)
}
func normalize(data []int) []int {
mn := minSlice(data)
norm := []int{}
for _, v := range data {
norm = append(norm, v - mn)
}
sort.Ints(norm)
return norm
}
func minSlice(slice []int) int {
min := slice[0]
for _, val := range slice {
if val < min {
min = val
}
}
return min
}
func toSlice(mp map[string]int) []int {
slice := []int{}
for _, val := range mp {
slice = append(slice, val)
}
return slice
}
func stripId(id string) string {
if !strings.Contains(id, ":") {
return id
}
return strings.Split(id, ":")[0]
}