克里斯·穆迪的CM_Stochastic高亮条:我如何编写“较高的高”和“较低的低”？

Question

我正在尝试为克里斯·穆迪的CM_Stochastic高亮显示条指示器添加一个特定的警报系统，以便在1) crossUpAll高于前一个时得到通知2) crossDownAll低于前一个

我写了这段代码，但它不会触发警报：

pos_change = (crossUpAll[1] >= crossUpAll) 
neg_change = (crossDownAll[1] <= crossDownAll)

alertcondition (pos_change, "higher high") 
alertcondition (neg_change, "lower low")

你能推荐一种替代方案吗？

Answer 1

这将在发生交叉时保存价格，并仅在图表符号的价格高于/低于前一个交叉时触发警报。请注意，使用的交叉类型是k不需要低于/高于低/高线的类型，因此需要更改默认脚本的设置以显示该类型的交叉。脚本已转换为v4：

//@version=4
//Created by ChrisMoody on October 23, 2014 by user request - belgusinc
//Changes Barcolor when Stochastic is Overbought Oversold.

//Necessary for Highlight Bars
//Only Necessary if you want you want Stochastic Croses
study(title="CM_Stochastic_Highlight Bars", shorttitle="CM_Stoch_HighlightBars v4", overlay=true)
len = input(14, minval=1, title="Length for Stochastic") 
smoothK = input(3, minval=1, title="SmoothK for Stochastic")
smoothD = input(3, minval=1, title="SmoothD for Stochastic")
upLine = input(80, minval=50, maxval=90, title="Upper Line Value?")
lowLine = input(20, minval=10, maxval=50, title="Lower Line Value?")

//Not Necessary, In Inputs Tab, capability to turn On/Off Highlight Bars, and Both Crosses
//These are all checkboxes in inputs tab....Show Barcolor Highlights, Show Background Hghlight, Plot B and S for Buy Sell 
sbc = input(true, title="Show Price Bar highlight When Stoch is Above/Below High/Low Lines?")
sbh = input(false, title="Show Background highlight When Stoch is Above/Below High/Low Lines?")
sch = input(false, title="Show Back Ground Highlights When Stoch Cross - Strict Criteria - K Greater/LesThan High/Low Line - Crosses D ?")
sl = input(true, title="Show 'B' and 'S' Letters When Stoch Crosses High/Low Line & D?")
sac = input(false, title="Show Back Ground Highlights When Stoch Cross - Any Cross?")
sacl = input(false, title="Show 'B' and 'S' Letters When Stoch Crosses - Any Cross?")

//Necessary for Highlight Bars
//Stoch formula
k = sma(stoch(close, high, low, len), smoothK)
d = sma(k, smoothD)

//Necessary for Highlight Bars
//aboveline = OverBought, belowline = Oversold Definitions
aboveLine = k > upLine ? 1 : 0
belowLine = k < lowLine ? 1 : 0

//Only Necessary if you want you want Stochastic Croses
//Definition for Cross when Above High-Low lines
crossUp = (k[1] < d[1] and k[1] < lowLine[1]) and (k > d)  ? 1 : 0
crossDn = (k[1] > d[1] and k[1] > upLine[1]) and (k < d) ? 1 : 0

//Only Necessary if you want you want Stochastic Croses
//Definition for Cross that doesn't have to be above or below High and Low line.
crossUpAll = (k[1] < d[1] and k > d) ? 1 : 0
crossDownAll = (k[1] > d[1] and k < d) ? 1 : 0
var lastCrossUpPrice = 0.
var lastCrossDnPrice = 10e10
crossUpAlert = false
crossDnAlert = false
if crossUpAll and not crossUpAll[1]
    crossUpAlert := close > lastCrossUpPrice
    lastCrossUpPrice := close
if crossDownAll and not crossDownAll[1]
    crossDnAlert := close < lastCrossDnPrice
    lastCrossDnPrice := close

//Only Necessary if you want background Highlighting also - Take out the sbh/sbc and part
//BackGround Highlights based on Above/Below Lines, Strict Cross Up/Down
//BackGroound Color Plots
bgcolor(sbh and aboveLine ? color.red : na, transp=70)
bgcolor(sbh and belowLine ? color.lime : na, transp=70)
bgcolor(sch and crossUp ? color.lime : na, transp=40)
bgcolor(sch and crossDn ? color.red : na, transp=40)

//Only Necessary if you want background Highlighting also
//plots bgcolor Cross with no filter
bgcolor(sac and crossUpAll ? color.lime : na, transp=40)
bgcolor(sac and crossDownAll ? color.red : na, transp=40)

//Necessary for Highlight Bars
//Highlight Bar Definitions
overBought() => sbc and aboveLine 
overSold() => sbc and belowLine 

//Necessary for Highlight Bars
//Highlight Bar Plot Statement based on Above Definitions
barcolor(overBought() ? color.orange : overSold() ? color.fuchsia : na)

//Not Necessary if you just want Highlight Bars  - Extra Feature
//These are just the Letters B and Sell Based on Crosses
plotchar(sl and crossUp ? crossUp : na, title="Buy Signal Strict Criteria", char='B', location=location.belowbar, color=color.lime, transp=0, offset=0)
plotchar(sl and crossDn ? crossDn : na, title="Sell Signal Strict Criteria", char='S', location=location.abovebar, color=color.red, transp=0, offset=0)
plotchar(sacl and crossUpAll ? crossUpAll : na, title="Buy Signal Any Cross Up", char='B', location=location.belowbar, color=color.lime, transp=0, offset=0)
plotchar(sacl and crossDownAll ? crossDownAll : na, title="Sell Signal Any Cross Down", char='S', location=location.abovebar, color=color.red, transp=0, offset=0)

alertcondition (crossUpAlert, "higher high")
alertcondition (crossDnAlert, "lower low")

// Debugging.
plotchar(crossUpAll, "crossUpAll", "•", location.bottom, transp = 0)
plotchar(crossDownAll, "crossDownAll", "•", location.top, transp = 0)
plotchar(crossUpAlert, "crossUpAlert", "▲", location.bottom, transp = 60)
plotchar(crossDnAlert, "crossDnAlert", "▼", location.top, transp = 60)

调试图包含在最后。三角形显示将触发警报的位置，而点显示发生交叉的所有位置。

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