stats

package

v1.4.1 Latest Latest Go to latest Published: Feb 27, 2023 License: MIT Imports: 1 Imported by: 0

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type MovingStats struct {
	// contains filtered or unexported fields
}

func NewMovingStats(window int64) *MovingStats

func NewMovingSum(window int64) *MovingStats

func NewMovingUnilateralValue(window int64, newFactor float64, oldFactor float64) *MovingStats

func NewMovingValue(window int64, newFactor float64, oldFactor float64) *MovingStats

func (stats *MovingStats) Add(val float64)

func (stats *MovingStats) AddStater(stater StepStater) StatHandler

func (stats *MovingStats) GetWeightUnilateralValueStater(newFactor float64, oldFactor float64) StepStater

func (stats *MovingStats) GetWeightValueStater(newFactor float64, oldFactor float64) StepStater

func (stats *MovingStats) History() []float64

func (stats *MovingStats) Last() float64

func (stats *MovingStats) LastN(n int64) float64

func (stats *MovingStats) N() int64

func (stats *MovingStats) SumStater(_ StatsProvider, old float64, removed float64, val float64) (new float64)

func (stats *MovingStats) Value() float64

func (stats *MovingStats) Window() int64

type SquareStatsProvider interface {
	SumStatsProvider
	Sum2() float64
}

type StatHandler int

type StatsProvider interface {
	N() int64
	History() []float64
}

type StepStater func(stats StatsProvider, old float64, removed float64, val float64) (new float64)

type SumStatsProvider interface {
	StatsProvider
	Sum() float64
}