https://github.com/sergonie/wrand

Lightweight golang library for weighted random selection.
https://github.com/sergonie/wrand

fast go golang random weighted

Last synced: 6 months ago
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Lightweight golang library for weighted random selection.

• Host: GitHub
• URL: https://github.com/sergonie/wrand
• Owner: sergonie
• License: mit
• Created: 2021-04-26T20:38:55.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2021-04-26T21:49:33.000Z (about 5 years ago)
• Last Synced: 2024-06-21T09:46:01.394Z (about 2 years ago)
• Topics: fast, go, golang, random, weighted
• Language: Go
• Homepage:
• Size: 7.81 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# WRAND

[![Go](https://github.com/sergonie/wrand/actions/workflows/go.yml/badge.svg?branch=master)](https://github.com/sergonie/wrand/actions/workflows/go.yml)

Lightweight golang library for obtaining a weighted random item.

## Installation

```shell

go get -u github.com/sergonie/wrand

```

## Example

```go

package main

import (

	"fmt"

	"github.com/sergonie/wrand"

)

func main() {

	myDataset := []struct {

		Name   string

		Weight int

	}{

		{

			Name:   "Max",

			Weight: 80,

		},

		{

			Name:   "El",

			Weight: 110,

		},

		{

			Name:   "Gabriella",

			Weight: 45,

		},

	}

	items := &wrand.ItemsCollection{}

	for k, v := range myDataset {

		items.Add(k, v.Weight)

	}

	selectedItem := wrand.NewPicker().Pick(items)

	fmt.Printf("Winner: %s\n", myDataset[selectedItem.Value].Name)

}

```