脚本帮助，编写 Weis Wave

Question

我分部分计算 VWAP，每次收盘与运行 VWAP 的差异大于偏差时，它就会翻转趋势并开始新的 VWAP 计数。 交易量应在每个趋势中汇总。

到目前为止，成交量在上升趋势中聚合，但在下降趋势中没有。 此外，当从向下切换到向上时，上升趋势量“窃取”最后一个下降趋势量并将其添加到自己的。 这一切都非常令人困惑，因为逻辑非常简单......

这是我的代码：

//@version=3
study("My Script")
deviation = input(title = "Deviation %", type=float, defval = 0.1)
running_vol = 0.0
running_sum = 0.0
Tup = true
Tdown = false

running_vol := nz(volume[1]) == 0 ? 0 : running_vol[1] + volume
running_sum := nz(volume[1]) == 0 ? 0 : running_sum[1] + (close*volume)

volwap = (running_sum/running_vol)

// flip to downtrend
if (Tup == true) and (Tdown == false) and (close < close[1]) and ((1 - (close/volwap)) > (deviation/100.0))
    // reset running_vol and sum to current volume and sum since it's a new trend
    running_vol := volume
    running_sum := (close*volume)
    // flip the trend switches
    Tup := false
    Tdown := true
// flip to uptrend
if (Tup == false) and (Tdown == true) and (close > close[1]) and (((close/volwap) - 1) > (deviation/100.0))
    running_vol := volume
    running_sum := (close*volume)
    Tup := true
    Tdown := false


up = Tup == true ? running_vol : 0
down = Tdown == true ? running_vol : 0

plot(up, style=histogram, color=green, linewidth=3)
plot(down, style=histogram, color=red, linewidth=3)

Answer 1

在原始脚本中，Tup 和 Tdown 的自引用是有问题的。 您必须参考过去的 Tup 和 Tdown 否则用户定义的 Tup=true 和 tdown =false 会在每次扫描脚本时重新引入。 由于 Tup 在每次扫描时重新启动为真，您一次只能有一个熊市成交量条。 我也看到了这个新颖有趣的波浪定义所需的转折点策略的问题。 一些游戏很可能会找到一个比这个脚本中的情节更让你满意的转折点。 我曾经试图保持您对 volwap 和 close[1] 相对于 close[0] 的使用，但我不确定我是否以您真正想要的方式捕获了它。 我希望这可以为您提供一个起点来完善您的波浪定义。 这是我对您的代码的 pine 脚本再现。 干杯杰伊：

//@version=3
// my impression of the Weis VWAP code by Moreina by Jayy
study("Moreina Weis vwap")
deviation = input(title = "Deviation %", type=float, defval = 0.00000000)
running_vol = 0.0
running_sum = 0.0
Tup = 0

count=1
count:= nz(count[1])+1
running_vol := Tup[1]!=Tup[2] and nz(running_vol[1])==nz(volume[1])? nz(running_vol[1]) + volume:  (Tup[1]==1 and Tup[2]==1) or (Tup[1]==-1 and Tup[2]==-1)? nz(running_vol[1]) + volume:na
running_sum := Tup[1]!=Tup[2] and nz(running_sum[1])==nz(close[1]*volume[1])? nz(running_sum[1]) + close*volume: (Tup[1]==1 and Tup[2]==1) or (Tup[1]==-1 and Tup[2]==-1)? nz(running_sum[1]) +close* volume:na

volwap = (running_sum/running_vol)

// flip to downtrend
if ((Tup[1] == 1) or (Tup[1] == 0)) and not ((close > close[1]) or (close/volwap)>1) //

    // reset running_vol and sum to current volume and sum since it's a new trend
    running_vol := volume
    running_sum := (close*volume)
    // flip the trend switches
    Tup := -1

// flip to uptrend
if ((Tup[1] == -1) or (Tup[1] == 0))  and not ((close < close[1]) or ((close/volwap)) <1) //and (close/volwap) > 1) 

    running_vol := volume
    running_sum := (close*volume)
    Tup := 1


Tup:= nz(Tup[0])==1 and count>1?Tup[0]:nz(Tup[0])==-1 and count>1?Tup[0]: count>1 and Tup[0]==0?nz(Tup[1]):na//Tup
up = Tup == 1 ? running_vol : na
down = Tup == -1  ? running_vol : na

plot(up, style=histogram, color=green, linewidth=3)
plot(down, style=histogram, color=red, linewidth=3)