Pine Script指标优化需求：仅在新高/新低形成时显示箭头

需求说明 #

原指标在任意突破时都会显示计数标签，需要优化为：

• 仅在看涨突破后形成新低，且bosLow确实被更新为更低值时，显示看跌突破计数标签
• 仅在看跌突破后形成新高，且bosHigh确实被更新为更高值时，显示看涨突破计数标签

修改后的完整代码 #

//@version=5
indicator(title='y.z test ind', shorttitle='y.z test ind', overlay=true)

// 结构高低点变量
var float bosHigh = na
var float bosLow = na

// 初始化高低点
if na(bosHigh)
    bosHigh := high
if na(bosLow)
    bosLow := low

// 突破状态与计数变量
var bool bearishBreak = false
var bool bullishBreak = false
var int bearishBreakCount = 0
var int bullishBreakCount = 0

// 新高/新低标记变量
var bool newLowFormed = false
var bool newHighFormed = false

// 绘制突破计数标签的函数
f_plotBreakCount(_breakCount, _price, _isBullish) =>
    label.new(x=bar_index, y=_price, text=str.tostring(_breakCount), 
              style=label.style_label_down, color=_isBullish ? color.red : color.green, 
              yloc=_isBullish ? yloc.abovebar : yloc.belowbar, textcolor=color.white)

// 看跌突破（收盘价突破bosHigh）逻辑
if close > bosHigh
    // 记录突破前的bosLow基准值，用于后续判断是否真的更新了低点
    float prevBosLow = bosLow
    bosHigh := high
    bosLow := low
    bearishBreak := true
    bullishBreak := false
    bullishBreakCount := 0
    bearishBreakCount += 1
    newLowFormed := false
    
    int i = 1
    bool waveFound = true
    while waveFound and i < 2000
        if close[i] < open[i]
            if close[i] < low[i+1]
                waveFound := false
                newLowFormed := true
        // 更新bosLow为历史更低点
        if low[i] < bosLow
            bosLow := low[i]
        i += 1
    
    // 仅当形成新低且bosLow确实比突破前更低时，才显示标签
    if newLowFormed and bosLow < prevBosLow
        f_plotBreakCount(bearishBreakCount, bosLow, false)

// 看涨突破（收盘价突破bosLow）逻辑
if close < bosLow
    // 记录突破前的bosHigh基准值，用于后续判断是否真的更新了高点
    float prevBosHigh = bosHigh
    bosLow := low
    bosHigh := high
    bearishBreak := false
    bullishBreak := true
    bearishBreakCount := 0
    bullishBreakCount += 1
    newHighFormed := false
    
    int i = 1
    bool waveFound = true
    while waveFound and i < 2000
        if close[i] > open[i]
            if close[i] > high[i+1]
                waveFound := false
                newHighFormed := true
        // 更新bosHigh为历史更高点
        if high[i] > bosHigh
            bosHigh := high[i]
        i += 1
    
    // 仅当形成新高且bosHigh确实比突破前更高时，才显示标签
    if newHighFormed and bosHigh > prevBosHigh
        f_plotBreakCount(bullishBreakCount, bosHigh, true)

// 绘制结构高低线
plot(title='BosHigh', series=bosHigh, color=color.rgb(234, 25, 14), linewidth=1, offset=0, style=plot.style_stepline)
plot(title='BosLow', series=bosLow, color=color.rgb(234, 25, 14), linewidth=1, offset=0, style=plot.style_stepline)

关键改动说明 #

1. 增加基准值对比：在突破发生时，先记录当前的bosLow/bosHigh作为基准值（prevBosLow/prevBosHigh），后续通过对比基准值和更新后的高低点，确认是否真的形成了更低的低点或更高的高点。
2. 严格显示条件：将标签显示的条件从单纯的newLowFormed/newHighFormed，改为newLowFormed and bosLow < prevBosLow和newHighFormed and bosHigh > prevBosHigh，确保只有高低点确实更新时才显示标签。
3. 逻辑保持一致性：保留原有的新高/新低识别逻辑，仅在最终显示环节增加高低点更新的验证，不破坏核心结构判断逻辑。

内容的提问来源于stack exchange，提问作者Yury Zinkevich