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helper

package

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Versions in this module

v1

v1.0.0

Jun 15, 2022

Changes in this version

+ func AggKey(arg *types.MetricData, nodesOrTags []parser.NodeOrTag) string

+ func GCD(a, b int64) int64

+ func GetCommonStep(args []*types.MetricData) (commonStep int64, changed bool)

+ func LCM(args ...int64) int64

+ func ScaleToCommonStep(args []*types.MetricData, commonStep int64) []*types.MetricData

+ func ScaleValuesToCommonStep(values map[parser.MetricRequest][]*types.MetricData) map[parser.MetricRequest][]*types.MetricData

v0

v0.12.0-rc.0

Jun 23, 2019

v0.11.1

Jun 22, 2019

v0.11.0

Mar 22, 2018

v0.10.0

Feb 28, 2018

v0.9.2

Feb 20, 2018

v0.9.1

Feb 16, 2018

Changes in this version

+ var Backref = regexp.MustCompile(`\\(\d+)`)

+ var ExtrapolatePoints = false

+ func AggregateSeries(e parser.Expr, args []*types.MetricData, function AggregateFunc) ([]*types.MetricData, error)

+ func AlignSeries(args []*types.MetricData) []*types.MetricData

+ func AlignStartToInterval(start, stop, bucketSize int32) int32

+ func AlignToBucketSize(start, stop, bucketSize int32) (int32, int32)

+ func AvgValue(f64s []float64, absent []bool) float64

+ func Contains(a []int, i int) bool

+ func CurrentValue(f64s []float64, absent []bool) float64

+ func ExtractMetric(s string) string

+ func ForEachSeriesDo(e parser.Expr, from, until int32, ...) ([]*types.MetricData, error)

+ func GetBuckets(start, stop, bucketSize int32) int32

+ func GetSeriesArg(arg parser.Expr, from, until int32, ...) ([]*types.MetricData, error)

+ func GetSeriesArgs(e []parser.Expr, from, until int32, ...) ([]*types.MetricData, error)

+ func GetSeriesArgsAndRemoveNonExisting(e parser.Expr, from, until int32, ...) ([]*types.MetricData, error)

+ func MaxValue(f64s []float64, absent []bool) float64

+ func MinValue(f64s []float64, absent []bool) float64

+ func Percentile(data []float64, percent float64, interpolate bool) float64

+ func Poly(x float64, coeffs ...float64) float64

+ func RemoveEmptySeriesFromName(args []*types.MetricData) string

+ func SetEvaluator(e interfaces.Evaluator)

+ func SummarizeValues(f string, values []float64) float64

+ func Vandermonde(absent []bool, deg int) *mat64.Dense

+ func VarianceValue(f64s []float64, absent []bool) float64

+ type AggregateFunc func([]float64) float64

+ type ByName []*types.MetricData

+ func (s ByName) Len() int

+ func (s ByName) Less(i, j int) bool

+ func (s ByName) Swap(i, j int)

+ type ByNameNatural []*types.MetricData

+ func (s ByNameNatural) Len() int

+ func (s ByNameNatural) Less(i, j int) bool

+ func (s ByNameNatural) Swap(i, j int)

+ type ByVals struct

+ Series []*types.MetricData

+ Vals []float64

+ func (s ByVals) Len() int

+ func (s ByVals) Less(i, j int) bool

+ func (s ByVals) Swap(i, j int)

+ type ErrUnknownFunction string

+ func (e ErrUnknownFunction) Error() string