基于 3 个值绘制

Question

我找到了一个脚本，想对其进行调整以在主图表上显示警报和绘图，但我不知道如何操作。

我希望在直方图中的所有 3 个条都是浅色时绘制一个信号，然后在它们都切换到深色信号时再次绘制信号

如有任何帮助或指导，我们将不胜感激。

谢谢，

'''
study(title="3 Linear Regression Curve", shorttitle="Triple LRC", overlay=false)
src = close
len1 = input(10)
len2 = input(14)
len3 = input(30)
offset = 0
reg1 = linreg(src, len1, offset)
reg2 = linreg(src, len2, offset)
reg3 = linreg(src, len3, offset)

hist1 = 3
hist2 = 2
hist3 = 1

plot(hist1,style=histogram,color=reg1>reg1[1]?aqua:blue,transp=0,linewidth=3)
plot(hist2,style=histogram,color=reg2>reg2[1]?yellow:orange,transp=0,linewidth=3)
plot(hist3,style=histogram,color=reg3>reg3[1]?lime:green,transp=0,linewidth=3)
'''

Answer 1

在这种情况下，您使用 overlay=false，最好有另一个脚本来查看您可能使用 plotshape() 函数的买卖信号。

你应该小心你的买卖信号。当您的信号之一是 TRUE 时，您将收到每个柱的提醒。理想情况下，您希望有一个买入信号，然后有一个卖出信号。

看看下面的脚本：

//@version=4
study(title="3 Linear Regression Curve Overlay", shorttitle="Triple LRC", overlay=true)
src = close
len1 = input(10)
len2 = input(14)
len3 = input(30)

var isLong = false      // Flag to see if you are already long
var isShort = false     // Flag to see if you are already short

offset = 0
reg1 = linreg(src, len1, offset)
reg2 = linreg(src, len2, offset)
reg3 = linreg(src, len3, offset)

hist1 = 3
hist2 = 2
hist3 = 1

buyCondition = not isLong and (reg1 > reg1[1]) and (reg2 > reg2[1]) and (reg3 > reg3[1])        // Go long only if you are not already long
sellCondition = not isShort and (reg1 <= reg1[1]) and (reg2 <= reg2[1]) and (reg3 <= reg3[1])   // Go short only if you are not already short

if (buyCondition)       // Set flags
    isLong := true
    isShort := false

if (sellCondition)      // Set flags
    isLong := false
    isShort := true
plotshape(series=buyCondition, text="BUY", style=shape.triangleup, color=color.green, location=location.belowbar, size=size.small)
plotshape(series=sellCondition, text="SELL", style=shape.triangledown, color=color.red, location=location.abovebar, size=size.small)

这将仅在您做空时绘制买入，仅在您做多时绘制卖出。

一旦确定，您只需将买卖条件转换为警报。

//@version=4
study(title="3 Linear Regression Curve", shorttitle="Triple LRC", overlay=false)
src = close
len1 = input(10)
len2 = input(14)
len3 = input(30)

var isLong = false
var isShort = false

offset = 0
reg1 = linreg(src, len1, offset)
reg2 = linreg(src, len2, offset)
reg3 = linreg(src, len3, offset)

hist1 = 3
hist2 = 2
hist3 = 1

buyCondition = not isLong and (reg1 > reg1[1]) and (reg2 > reg2[1]) and (reg3 > reg3[1])        // Go long only if you are not already long
sellCondition = not isShort and (reg1 <= reg1[1]) and (reg2 <= reg2[1]) and (reg3 <= reg3[1])   // Go short only if you are not already short

if (buyCondition)       // Set flags
    isLong := true
    isShort := false

if (sellCondition)      // Set flags
    isLong := false
    isShort := true

alertcondition(condition=buyCondition, title="Alert: All light colors", message="BUY")
alertcondition(condition=sellCondition, title="Alert: All dark colors", message="SELL")

plot(hist1, style=plot.style_histogram, color= reg1 > reg1[1] ? color.aqua:color.blue, transp=0,linewidth=3)
plot(hist2, style=plot.style_histogram, color= reg2 > reg2[1] ? color.yellow:color.orange, transp=0,linewidth=3)
plot(hist3, style=plot.style_histogram, color= reg3 > reg3[1] ? color.lime:color.green, transp=0,linewidth=3)

请记住，您应该按照 here and here 所述手动设置警报。

基于 3 个值绘制

Plotting based on 3 values

pine-script