Tradingview pinscript。返回上次满足条件的时间

Question

因此，我在脚本中使用了分形指示器，但我需要在警报中返回最后一个分形值。为此，我需要每根蜡烛返回最后一个分形信号的值(请不是我现在没有放入最高()和最低()函数，但我会的)

下面是我的代码：

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fTop = high[4] < high[2] and high[3] < high[2] and high[2] > high[1] and high[2] > high[0]
fBottom= low[4] > low[2] and low[3] > low[2] and low[2] < low[1] and low[2] < low[0]

plotshape(fTop ? close : na, title='Top Fractals', style=shape.triangleup, location=location.abovebar, color=color.red, offset=-2)
plotshape(fBottom ? close : na, title='Bottom Fractals', style=shape.triangledown, location=location.belowbar, color=color.blue, offset=-2)

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现在，如果我没有达到candle的条件，脚本会返回"na“。我试图把fTop1 / fBottom1，但它返回的最后一支蜡烛，而不是最后的条件...有谁有解决方案吗？

谢谢您:)

Answer 1

我需要返回最后一个分形值

下面的解决方案将绘制分形的收盘价。请注意，您的分形有一个负的偏移量2，因此关闭系列有一个2巴的历史参考。

//@version=4
study("Fractal", overlay = true)

fTop = high[4] < high[2] and high[3] < high[2] and high[2] > high[1] and high[2] > high[0]
fBottom= low[4] > low[2] and low[3] > low[2] and low[2] < low[1] and low[2] < low[0]

plotshape(fTop ? close : na, title='Top Fractals', style=shape.triangleup, location=location.abovebar, color=color.red, offset=-2)
plotshape(fBottom ? close : na, title='Bottom Fractals', style=shape.triangledown, location=location.belowbar, color=color.blue, offset=-2)

var float fixTop = na
var float fixBot = na

if fTop
    fixTop := close[2]
else if fBottom
    fixBot := close[2]


plot(fixTop, change(fixTop) ? na : color.green, style = plot.style_linebr, offset = -2)
plot(fixBot, change(fixBot) ? na : color.red, style = plot.style_linebr, offset = -2)

​

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要返回分形的高/低值，请更改代码的以下部分：

if fTop
    fixTop := high[2]
else if fBottom
    fixBot := low[2]

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