定義
ta.bbw(source, length, sigma)
引数
| 引数名 |
内容 |
初期値 |
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source |
計算する価格 |
|
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length |
ミドルライン(EMA)の計算期間 |
|
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sigma |
ケルトナーチャネルのATR倍率 |
|
戻り値
float : ボリンジャーバンド幅
サンプルコード
20日/±2σのボリンジャーバンド幅グラフを描画
plot(ta.bbw(close, 20, 2), color=color.green)
