weightedIndex関数
リファレンスの説明と例は英語です。見出しと目次は日本語です。
An index into weights, each chosen in proportion to its weight: one draw.
Weights must not be negative; a list whose weights sum to nothing gives 0.
インポート
import { weightedIndex } from "@johnmorrisdotca/tane";
定義
function weightedIndex(random: Random, weights: readonly number[]): number
引数
| 名前 | 型 | 説明 |
|---|---|---|
random | Random | A random source returning values in [0, 1). |
weights | readonly number[] | Nonnegative weights in the same order as the corresponding items. |
戻り値
number
An index into weights, each chosen in proportion to its weight: one draw. Weights must not be negative; a list whose weights sum to nothing gives 0.
例
import { mulberry32, weightedIndex } from "@johnmorrisdotca/tane";
const random = mulberry32(42);
console.log(weightedIndex(random, [1, 3]));1出力(このページを作ったときに実行した結果)
この日本語は、まだ日本語を母語とする方の確認を受けていません。訂正を歓迎します。