由于未知原因未绘制一些电阻

我完成了支持和抵抗的代码。我添加了上一季度和本月最高和最低的其他条件。它现在绘制的很好，但是在某些情况下它并没有绘制应该存在的阻力，我不知道为什么会这样。

绿色箭头表示支撑，红色箭头表示阻力。在最右边的两个峰值处，应该绘制阻力红色箭头，因为价格在前一个季度和一个月的低点下方交叉，然后在前一个星期的高点上方交叉，同时保持在前一个季度和一个月的高点下方，但是没有绘制任何内容。

//@version=4
//By Juros

// Resistance is not plotted 100% accurate, some are missing.


//-------------------------------
// support
// If the price crosses above the previous quarter high and previous month high, and then crosses down the previous week low, the close becomes a support. 
//As long as the price stays then below the previous week high, each close becomes a support. The    condition remains as long as the prices do not cross 
//below previous quarter low OR previous month low, then support also stops.

//-------------------------------
// resistance
// If the price crosses below the previous quarter low and previous month low, and then crosses    up the previous week high, the close becomes a resistance.
// As long as the price stays then above the previous week low, each close becomes a support.  The condition remains as long as the price does not cross
// above previous quarter high OR previous month high, then resistance also stops.


study(title="Universal support and resistance", shorttitle="Univ sup & res", overlay=true, precision=8)
prevwkH = input(true, title="Show previous week high")
prevwkL = input(true, title="show previous week low?")
prevMH = input(true, title= "Show previous month high")
prevML = input(true, title= "Show previous month low")
prevQH = input(true, title= "Show previous quarter high")
prevQL = input(true, title= "Show previous quarter low")

//previous week high and low
prevWeekHigh = security(syminfo.tickerid, 'W', high[1], lookahead=true)
prevWeekLow = security(syminfo.tickerid, 'W', low[1], lookahead=true)

//previous Week Plots
plot(prevwkH and prevWeekHigh ? prevWeekHigh : na, title="Prev Week High",   style=plot.style_stepline,   linewidth=1, color=color.fuchsia,transp=20)
plot(prevwkL and prevWeekLow ? prevWeekLow : na, title="Prev Week Low", style=plot.style_stepline, linewidth=1, color=color.fuchsia,transp=20)

//-------------------------------------------------------

// Previous month high and low
prevMonthHigh = security(syminfo.tickerid, 'M', high[1], lookahead=true)
prevMonthLow = security(syminfo.tickerid, 'M', low[1], lookahead=true)

plot(prevMH and prevMonthHigh ? prevMonthHigh : na, title="Prev Month High",   style=plot.style_stepline, linewidth=1, color=color.orange, transp=40)
plot(prevML and prevMonthLow ? prevMonthLow : na, title="Prev Month Low", style=plot.style_stepline, linewidth=1, color=color.orange, transp=40)

//-------------------------------------------------------------

//Previous quarter high and low
prevQuarterHigh = security(syminfo.tickerid, '3M', high[1], lookahead=true)
prevQuarterLow = security(syminfo.tickerid, '3M', low[1], lookahead=true)

plot(prevQH and prevQuarterHigh ? prevQuarterHigh : na, title="Prev Quarter High", style=plot.style_stepline, linewidth=1, color=color.aqua, transp=0)
plot(prevQL and prevQuarterLow ? prevQuarterLow : na, title="Prev Quarter Low", style=plot.style_stepline, linewidth=1, color=color.aqua, transp=0)

//-------------------------------------------------------------

upTrend = false
upTrend := (not upTrend[1] and crossover(close, prevQuarterHigh)) or (upTrend[1] and not crossunder(low, prevQuarterLow) or (not upTrend[1] and crossover(high, prevMonthHigh)) or upTrend[1] and not crossunder(low, prevMonthLow))


//-------------------------------------------------------------
// weekly support and resistance

var isSupport = false
var isResistance = false 

if (crossunder(low, prevWeekLow))
    isSupport := true
    isResistance := false

if (crossover(high, prevWeekHigh))
    isSupport := false
    isResistance := true
//-------------------------------------------------------------

// Monthly support
var isSupportM = false

if (crossunder(low, prevMonthLow))
    isSupportM := false

if (crossover(high, prevMonthHigh))
    isSupportM := true

//-------------------------------------------------------------


// Quarterly support
var isSupportQ = false

if (crossunder(low, prevQuarterLow))
    isSupportQ := false

if (crossover(high, prevQuarterHigh))
    isSupportQ := true

//-------------------------------------------------------------   

// Monthly resistance

var isResistanceM = false 

if (crossunder(low, prevMonthLow))
    isResistanceM := true

if (crossover(high, prevMonthHigh))
    isResistanceM := false
//-------------------------------------------------------------


// Quarterly resistance
var isResistanceQ = false 

if (crossunder(low, prevQuarterLow))
    isResistanceQ := true

if (crossover(high, prevQuarterHigh))
    isResistanceQ := false

//plot support & resistance 
plotshape (upTrend and isSupport and isSupportM and isSupportQ ? close: na, style=shape.arrowup, location=location.belowbar, color=color.green, size=size.normal, transp=0 )
plotshape (not upTrend and isResistance and isResistanceM and isResistanceQ ? close: na, style=shape.arrowdown, location=location.abovebar, color=color.red, size= size.normal, transp=0 )