takuoki/weightedrand

A golang package for weighted random.

weightedrand

A golang package for weighted random.

Usage

items := []weightedrand.WeightedItem[string]{
  {Weight: 5, Item: "Hi!"},
  {Weight: 3, Item: "Hello!"},
  {Weight: 2, Item: "What's up?"},
}

wr := weightedrand.New(time.Now().UnixNano(), items)

fmt.Println(wr.GetItem()) // "Hi!", "Hello!" or "What's up?"

Weight	Item	Expected Rate
5	"Hi!"	50 % (= 5 / (5 + 3 + 2))
3	"Hello!"	30 % (= 3 / (5 + 3 + 2))
2	"What's up?"	20 % (= 2 / (5 + 3 + 2))