linear

Documentation

Index

• Constants
• func NewClampOp(args []interface{}, opType string) (parser.Params, error)
• func NewDateOp(opType string, usingSeries bool) (parser.Params, error)
• func NewHistogramQuantileOp(args []interface{}, opType string) (parser.Params, error)
• func NewMathOp(opType string) (parser.Params, error)
• func NewRoundOp(args []interface{}) (parser.Params, error)
• func NewSortOp(opType string) (parser.Params, error)
• type BaseOp
  • func (o BaseOp) Node(controller *transform.Controller, _ transform.Options) transform.OpNode
  • func (o BaseOp) OpType() string
  • func (o BaseOp) String() string
• type Processor

Constants

const (
	// ClampMinType ensures all values except NaNs are greater
	// than or equal to the provided argument.
	ClampMinType = "clamp_min"

	// ClampMaxType ensures all values except NaNs are lesser
	// than or equal to provided argument.
	ClampMaxType = "clamp_max"
)

const (
	// DayOfMonthType returns the day of the month for each of the given times
	// in UTC.
	// Returned values are from 1 to 31.
	DayOfMonthType = "day_of_month"

	// DayOfWeekType returns the day of the week for each of the given times
	// in UTC.
	// Returned values are from 0 to 6, where 0 means Sunday etc.
	DayOfWeekType = "day_of_week"

	// DaysInMonthType returns number of days in the month for each of the given
	// times in UTC.
	// Returned values are from 28 to 31.
	DaysInMonthType = "days_in_month"

	// HourType returns the hour of the day for each of the given times in UTC.
	// Returned values are from 0 to 23.
	HourType = "hour"

	// MinuteType returns the minute of the hour for each of the given times
	// in UTC.
	// Returned values are from 0 to 59.
	MinuteType = "minute"

	// MonthType returns the month of the year for each of the given times in UTC.
	// Returned values are from 1 to 12, where 1 means January etc.
	MonthType = "month"

	// YearType returns the year for each of the given times in UTC.
	YearType = "year"
)

const (
	// AbsType takes absolute value of each datapoint in the series.
	AbsType = "abs"

	// CeilType rounds each value in the timeseries up to the nearest integer.
	CeilType = "ceil"

	// FloorType rounds each value in the timeseries down to the nearest integer.
	FloorType = "floor"

	// ExpType calculates the exponential function for all values.
	// Special cases are: Exp(+Inf) = +Inf and Exp(NaN) = NaN
	ExpType = "exp"

	// SqrtType calculates the square root for all values.
	SqrtType = "sqrt"

	// LnType calculates the natural logarithm for all values.
	LnType = "ln"

	// Log2Type calculates the binary logarithm for all values.
	Log2Type = "log2"

	// Log10Type calculates the decimal logarithm for values.
	Log10Type = "log10"
)

const (
	// SortType returns timeseries elements sorted by their values, in ascending order.
	SortType = "sort"

	// SortDescType is the same as sort, but sorts in descending order.
	SortDescType = "sort_desc"
)

const (
	// HistogramQuantileType calculates the quantile for histogram buckets.
	//
	// NB: each sample must contain a tag with a bucket name (given by tag
	// options) that denotes the upper bound of that bucket; series without this
	// tag are ignored.
	HistogramQuantileType = "histogram_quantile"
)

const RoundType = "round"

RoundType rounds each datapoint in the series. Ties are resolved by rounding up. The optional to_nearest argument allows specifying the nearest multiple to which the timeseries values should be rounded (default=1). This variable may be a fraction. Special cases are: round(_, 0) = NaN

Functions

func NewClampOp

func NewClampOp(args []interface{}, opType string) (parser.Params, error)

NewClampOp creates a new clamp op based on the type and arguments

func NewDateOp

func NewDateOp(opType string, usingSeries bool) (parser.Params, error)

NewDateOp creates a new date op based on the type.

func NewHistogramQuantileOp

func NewHistogramQuantileOp(
	args []interface{},
	opType string,
) (parser.Params, error)

NewHistogramQuantileOp creates a new histogram quantile operation.

func NewMathOp

func NewMathOp(opType string) (parser.Params, error)

NewMathOp creates a new math op based on the type.

func NewRoundOp

func NewRoundOp(args []interface{}) (parser.Params, error)

NewRoundOp creates a new round op based on the type and arguments.

func NewSortOp

func NewSortOp(opType string) (parser.Params, error)

Types

type BaseOp

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

BaseOp stores required properties for logical operations.

func (BaseOp) Node

func (o BaseOp) Node(
	controller *transform.Controller,
	_ transform.Options,
) transform.OpNode

func (BaseOp) OpType

func (o BaseOp) OpType() string

func (BaseOp) String

func (o BaseOp) String() string

type Processor

type Processor interface {
	Process(values []float64) []float64
}

Processor is implemented by the underlying transforms. todo: remove public visibility