PineScript v2 to v4或v5

Question

我有一个文本v2，需要转换成v4或v5，但我仍然不明白，任何输入都是有用的，谢谢。这个脚本是很久以前开发的，现在访问它让我很困惑。我一直读到变量需要首先声明，我知道，但是将变量转换为v4或v5最有效的方法是什么呢？

strategy("Slow Heiken Ashi",overlay=false,precision=0)
//by Glaz.
//KAMA function
p=input(6,title='Period')
fastend=input(0.666,step=0.001)
slowend=input(0.0645,step=0.0001)
kama(close,amaLength)=>
    diff=abs(close[0]-close[1])
    signal=abs(close-close[amaLength])
    noise=sum(diff, amaLength)
    efratio=noise!=0 ? signal/noise : 1
    smooth=pow(efratio*(fastend-slowend)+slowend,2)
    kama=nz(kama[1], close)+smooth*(close-nz(kama[1], close))
    kama

//Slow Heiken Ashi
hakamaper=1
Signal=input(true)
Om=sma(open,p)
Hm=sma(high,p)
Lm=sma(low,p)
Cm=sma(close,p)
vClose=(Om+Hm+Lm+Cm)/4
vOpen= kama(vClose[1],hakamaper)
vHigh= max(Hm,max(vClose, vOpen))
vLow=  min(Lm,min(vClose, vOpen))

// Plots
vcolor= vOpen>vClose ?red:green
plotcandle(vOpen,vHigh,vLow,vClose,color=vcolor)

//signals
plotchar(Signal?(cross(vOpen,vClose) and vOpen[1]<vClose[1]?vHigh:na):na,char='▼',color=white,transp=0,location=location.absolute)
plotchar(Signal?(cross(vOpen,vClose) and vOpen[1]>vClose[1]?vLow:na):na,char='▲',color=white,transp=0,location=location.absolute)

Answer 1

我一直在读到变量需要首先声明。

是的，你是对的。在这个脚本中，只有一个例子。

kama = 0.0
kama := nz(kama[1], close) + smooth * (close - nz(kama[1], close))

修复之后，它将为v3编译。然后使用转换器工具先升级v4，然后升级v5。

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//@version=5
strategy('Slow Heiken Ashi', overlay=false, precision=0)
//by Glaz.
//KAMA function
p = input(6, title='Period')
fastend = input.float(0.666, step=0.001)
slowend = input.float(0.0645, step=0.0001)
kama(close, amaLength) =>
    diff = math.abs(close[0] - close[1])
    signal = math.abs(close - close[amaLength])
    noise = math.sum(diff, amaLength)
    efratio = noise != 0 ? signal / noise : 1
    smooth = math.pow(efratio * (fastend - slowend) + slowend, 2)
    kama = 0.0
    kama := nz(kama[1], close) + smooth * (close - nz(kama[1], close))
    kama

//Slow Heiken Ashi
hakamaper = 1
Signal = input(true)
Om = ta.sma(open, p)
Hm = ta.sma(high, p)
Lm = ta.sma(low, p)
Cm = ta.sma(close, p)
vClose = (Om + Hm + Lm + Cm) / 4
vOpen = kama(vClose[1], hakamaper)
vHigh = math.max(Hm, math.max(vClose, vOpen))
vLow = math.min(Lm, math.min(vClose, vOpen))

// Plots
vcolor = vOpen > vClose ? color.red : color.green
plotcandle(vOpen, vHigh, vLow, vClose, color=vcolor)

//signals
cross_1 = ta.cross(vOpen, vClose)
plotchar(Signal ? cross_1 and vOpen[1] < vClose[1] ? vHigh : na : na, char='▼', color=color.new(color.white, 0), location=location.absolute)
cross_2 = ta.cross(vOpen, vClose)
plotchar(Signal ? cross_2 and vOpen[1] > vClose[1] ? vLow : na : na, char='▲', color=color.new(color.white, 0), location=location.absolute)

如需进一步参考，请阅读这。