请求协助将PineScript v2版本ADX脚本转换为v4版本

转换后的完整v4代码 #

//@version=4
study("ADX", overlay=false)
len = input(title="Length", type=input.integer, defval=3)
len1 = input(title="Length1", type=input.integer, defval=1)
th = input(title="threshold", type=input.integer, defval=20)

TrueRange = ta.max(ta.max(high-low, math.abs(high-nz(close[1]))), math.abs(low-nz(close[1])))
DirectionalMovementPlus = high-nz(high[1]) > nz(low[1])-low ? ta.max(high-nz(high[1]), 0) : 0
DirectionalMovementMinus = nz(low[1])-low > high-nz(high[1]) ? ta.max(nz(low[1])-low, 0) : 0

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

crosscall = DIPlus > DIMinus
crossput = DIMinus > DIPlus
DIPcross = ta.sma(crosscall ? 1.0 : 0.0, len1)
DIPput = ta.sma(crossput ? 1.0 : 0.0, len1)
DIPOVB = DIPlus > 60
DIMOVS = DIMinus > 60

bgcolor(DIMOVS ? color.lime : na, transp=40)
bgcolor(DIPOVB ? color.orange : na, transp=20)
plot(DIPlus, color=color.green, linewidth=3, title="DI+")
plot(DIMinus, color=color.red, linewidth=3, title="DI-")
plot(ADX, color=color.white, linewidth=1, title="ADX")
hline(th, color=color.white, linewidth=1, linestyle=hline.style_dashed)
bgcolor(DIPcross > 0 ? color.new(color.green, 60) : na)
bgcolor(DIPput > 0 ? color.new(color.red, 60) : na)

核心转换要点 #

• 版本与基础声明：更新版本标识为//@version=4，显式声明overlay=false明确指标独立显示
• 输入参数规范：将v2的type=integer替换为v4标准的input.integer类型
• 函数命名空间：v4对内置函数做了分类，max→ta.max、abs→math.abs、sma→ta.sma，需加上对应命名空间前缀
• 循环变量初始化：对于自引用的平滑变量（如SmoothedTrueRange），必须用var关键字声明，确保仅初始化一次
• 布尔值处理：v4的sma不支持直接计算布尔值，需将crosscall/crossput转换为1.0（真）/0.0（假）的数值后再计算均线
• 颜色系统更新：v4颜色需使用color.前缀，如lime→color.lime，背景色透明度可通过color.new()或transp参数设置

内容的提问来源于stack exchange，提问作者LJ2