如何将RDX Score指标Pine Script旧版本转为V5并修复绘图异常

问题根源 #

原V4代码转V5时，递归计算的平滑变量未使用var关键字声明，导致每次脚本重新计算时变量被重置，ADX等指标值计算错误，进而触发不了后续的分数条件判断。此外V5中study()需替换为indicator()。

修复后的完整V5代码 #

//@version=5
indicator("RDX Score", overlay=true)

len = input.int(title="length_ADX", defval=14)
th = input.int(title="threshold_ADX", defval=14)

TrueRange = ta.tr                 // 直接使用内置TR函数，等价于原计算逻辑
DirectionalMovementPlus = ta.dm(true)  // 内置+DM函数
DirectionalMovementMinus = ta.dm(false) // 内置-DM函数

// 使用var初始化递归平滑变量，避免每次重置
var float SmoothedTrueRange = 0.0
var float SmoothedDirectionalMovementPlus = 0.0
var float SmoothedDirectionalMovementMinus = 0.0

SmoothedTrueRange := nz(SmoothedTrueRange[1]) - (nz(SmoothedTrueRange[1])/len) + TrueRange
SmoothedDirectionalMovementPlus := nz(SmoothedDirectionalMovementPlus[1]) - (nz(SmoothedDirectionalMovementPlus[1])/len) + DirectionalMovementPlus
SmoothedDirectionalMovementMinus := nz(SmoothedDirectionalMovementMinus[1]) - (nz(SmoothedDirectionalMovementMinus[1])/len) + DirectionalMovementMinus

DIPlus = SmoothedDirectionalMovementPlus / SmoothedTrueRange * 100
DIMinus = SmoothedDirectionalMovementMinus / SmoothedTrueRange * 100
DX = math.abs(DIPlus-DIMinus) / (DIPlus+DIMinus)*100
ADX = ta.sma(DX, len)

length_RSI = input.int(14)
priceRSI = close
vrsi = ta.rsi(priceRSI, length_RSI)

// 分数条件与绘图逻辑保持原逻辑，仅确保变量计算正确
m5 = ADX[1]<ADX and vrsi<30
plotshape(m5, title="SCORE -5", text="-5", textcolor=color.white, style=shape.triangledown, location=location.abovebar, color=color.red, transp=50, size=size.tiny)

m4 = (ADX[1]>ADX and vrsi<30) or (ADX[1]<ADX and vrsi<35 and vrsi>30)
plotshape(m4, title="SCORE -4", text="-4", textcolor=color.white, style=shape.triangledown, location=location.abovebar, color=color.red, transp=50, size=size.tiny)

m3 = (ADX[1]>ADX and vrsi<35 and vrsi>30) or (ADX[1]<ADX and vrsi<40 and vrsi>35)
plotshape(m3, title="SCORE -3", text="-3", textcolor=color.white, style=shape.triangledown, location=location.abovebar, color=color.red, transp=50, size=size.tiny)

m2 = (ADX[1]>ADX and vrsi<40 and vrsi>35) or (ADX[1]<ADX and vrsi<45 and vrsi>40)
plotshape(m2, title="SCORE -2", text="-2", textcolor=color.white, style=shape.triangledown, location=location.abovebar, color=color.red, transp=50, size=size.tiny)

m1 = ADX[1]>ADX and vrsi<45 and vrsi>40
plotshape(m1, title="SCORE -1", text="-1", textcolor=color.white, style=shape.triangledown, location=location.abovebar, color=color.red, transp=50, size=size.tiny)

m0 = vrsi<55 and vrsi>45
// plotshape(m0, title="QQE short", text="0", textcolor=color.black, style=shape.labeldown, location=location.abovebar, color=color.yellow, transp=0, size=size.tiny)
// plotshape(m0, title="QQE long", text="0", textcolor=color.black, style=shape.labelup, location=location.belowbar, color=color.yellow, transp=0, size=size.tiny)

p1 = ADX[1]>ADX and vrsi>55 and vrsi<60
plotshape(p1, title="SCORE 1", text="1", textcolor=color.white, style=shape.triangleup, location=location.belowbar, color=color.green, transp=50, size=size.tiny)

p2 = (ADX[1]>ADX and vrsi>60 and vrsi<65) or (ADX[1]<ADX and vrsi>55 and vrsi<60)
plotshape(p2, title="SCORE 2", text="2", textcolor=color.white, style=shape.triangleup, location=location.belowbar, color=color.green, transp=50, size=size.tiny)

p3 = (ADX[1]>ADX and vrsi>65 and vrsi<70) or (ADX[1]<ADX and vrsi>60 and vrsi<65)
plotshape(p3, title="SCORE 3", text="3", textcolor=color.white, style=shape.triangleup, location=location.belowbar, color=color.green, transp=50, size=size.tiny)

p4 = (ADX[1]>ADX and vrsi>70) or (ADX[1]<ADX and vrsi>65 and vrsi<70)
plotshape(p4, title="SCORE 4", text="4", textcolor=color.white, style=shape.triangleup, location=location.belowbar, color=color.green, transp=50, size=size.tiny)

p5 = ADX[1]<ADX and vrsi>70
plotshape(p5, title="SCORE 5", text="5", textcolor=color.white, style=shape.triangleup, location=location.belowbar, color=color.green, transp=50, size=size.tiny)

关键修改说明 #

• 替换study()为indicator()：这是Pine Script V5的强制要求，原V4的study在V5中已被indicator替代。
• 用var声明递归平滑变量：SmoothedTrueRange、SmoothedDirectionalMovementPlus、SmoothedDirectionalMovementMinus这三个递归计算的变量必须用var初始化，确保脚本在运行时不会每次重置变量值，保证ADX等指标计算正确。
• 使用内置函数简化代码：用ta.tr替代原TR手动计算，ta.dm(true/false)替代+DM/-DM的手动判断，逻辑完全等价但代码更简洁，减少出错概率。
• 输入类型调整：V5中input需根据类型改为input.int、input.float等，这里整数输入用input.int更规范。

内容的提问来源于stack exchange，提问作者Munif Shaikh