picker

package

v0.6.0 Latest Latest Go to latest Published: Jun 2, 2021 License: Apache-2.0 Imports: 3 Imported by: 0

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Repository

github.com/chronos-tachyon/roxy

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Documentation ¶

Index ¶

type Picker
- func Make(values []interface{}, scoreFn func(interface{}) float64) Picker

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type Picker ¶

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

Picker is a utility class for picking values from a list using weighted random selection. The weight is based on a user-defined score function, where low scores are exponentially more favorable than high scores.

func Make ¶

func Make(values []interface{}, scoreFn func(interface{}) float64) Picker

Make creates a Picker with the given values and score function.

func (Picker) Disable ¶

func (p Picker) Disable(index uint)

Disable permanently alters the probability of selecting the index'th value to 0.

func (Picker) Divvy ¶

func (p Picker) Divvy(amount float64) []float64

Divvy divides and distributes the given quantity among the values according to their individual probabilities.

func (Picker) Get ¶

func (p Picker) Get(index uint) interface{}

Get returns the index'th value in this Picker, using 0-based indexing.

func (Picker) Len ¶

func (p Picker) Len() uint

Len returns the number of values in this Picker.

func (Picker) Pick ¶

func (p Picker) Pick(rng *rand.Rand) uint

Pick randomly selects the index of a value.

Source Files ¶

View all Source files

picker.go

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