警报条件/连续信号问题

Question

快速提问。我一直在摆弄 pinescript 并且被卡住了。我整理的这段代码可以按我想要的方式绘制所有内容，但我无法弄清楚为什么 alertconditions 不起作用。它们要么不作为选项出现在编辑器中，要么在每个栏关闭时不管条件如何。我没有包括我摆弄过的警报条件，因为它们显然是错误的。当价格穿过 emas 时，我想将警报条件与箭头的绘图（buyConditions 和 sellCondition）配对。关于如何编写这些或重新编码阻止连续信号的行的任何建议？我想这就是错误所在，但我无法找到不同的方法来做到这一点。仍然在学习。 谢谢

//@version=4
study("3x3", overlay=true)
//inputs
src= close
len= 7
lowband= sma(low,10)
highband= sma(high,20)
mom= src-src[28]
paintbar = mom > 0 ? color.lime : mom < 0 ? color.fuchsia: na
buyCondition = crossunder(low,lowband[1])
sellCondition = crossover(high,highband[1])
//plots
plot(lowband, title="Low SMA", color=color.orange, linewidth=1, offset=1)
plot(highband, title="High SMA", color=color.orange, linewidth=1, offset=1)
barcolor(color=paintbar)

//to avoid multiple signals
bs = 0
bs := buyCondition ? 1 : sellCondition ? 2 : nz(bs[1])


plotshape(bs != bs[1], color = bs == 1 ? color.lime : color.red,title="Order Arrow", style=shape.arrowup, location=location.belowbar)

Answer 1

为了让您的警报条件显示在编辑器中，您必须给它们一个标题。
另见How to highlight TradingView alert setups with text and shapes?

这是您的代码，带有警报条件：

//@version=4
study("3x3", overlay=true)
//inputs
src= close
len= 7
lowband= sma(low,10)
highband= sma(high,20)
mom= src-src[28]
paintbar = mom > 0 ? color.lime : mom < 0 ? color.fuchsia: na
buyCondition = crossunder(low,lowband[1])
sellCondition = crossover(high,highband[1])
//plots
plot(lowband, title="Low SMA", color=color.orange, linewidth=1, offset=1)
plot(highband, title="High SMA", color=color.orange, linewidth=1, offset=1)
barcolor(color=paintbar)

//to avoid multiple signals
var int bs = na
bs := buyCondition ? 1 : sellCondition ? 2 : 0

alertcondition(buyCondition, title="buyCondition Title", message="Buy here")
alertcondition(sellCondition, title="sellCondition Title", message="Sell here")


plotshape(bs != 0, color = bs == 1 ? color.lime : color.red,title="Order Arrow", style=shape.arrowup, location=location.belowbar)