[英]what is [] in pine-script?
以下代碼中 _smoothed[1] 變量的值是多少?
f_zrsi( _source, _length ) => rsi( _source, _length ) - 50
f_rsi( _source, _length, _mode ) =>
// get base rsi
float _zrsi = f_zrsi( _source, _length )
// smoothing in a manner similar to HA open, but rather using the realtime
// rsi in place of the prior close value.
var float _smoothed = na
_smoothed := na( _smoothed[1] ) ? _zrsi : ( _smoothed[1] + _zrsi ) / 2
// return the requested mode
_mode ? _smoothed : _zrsi
它被稱為History Reference Operator ,用於訪問歷史數據。
在您的示例中, _smoothed[1]
返回_smoothed
的先前值。
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.