从今年的最高点到今天的 PineScript 画一条线

Question

我正在学习 pinescript 并在我的 if 语句中遇到编译错误 “预计行尾没有行继续。”

我想要代码做的是创建 2 行

从今年的最高点到收盘蜡烛
从今年的最低点到收盘蜡烛

@version=4
    strategy("Time Range", overlay=true)

    i_startTime=input(defval=timestamp("01 Jan 2021 13:30 +0000"), title="Start Time", type=input.time)
    i_endTime=input(defval=timestamp("01 Jul 2021 13:30 +0000"), title="End Time", type=input.time)
    i_length=input(defval=20, title= "Length", type=input.integer)
    
    inDateRange = time >= i_startTime and time <= i_endTime
    inCondition = not na(close[i_length])
    
    hh=highest(high,i_length)
    ll=lowest(low,i_length)
    
    if(inCondition and inDateRange)
        // Make both trend lines just once
    highLine = line.new(x1=bar_index[hh], y1=close[hh],
         x2=bar_index, y2=close, color=color.green,
         extend=extend.both)
    
    lowLine = line.new(x1=bar_index[ll], y1=close[ll],
         x2=bar_index, y2=close, color=color.red,
         extend=extend.both)

Answer 1

首先，它应该是 //@version=4 并且您不必要地缩进了所有代码。

newYear = change(time("12M")) != 0

var float hh = na
var float ll = na
var int hhIndex = na
var int llIndex = na

var line hhLine = line.new(x1 = na, y1 = na, x2 = na, y2 = na, color = color.red)
var line llLine = line.new(x1 = na, y1 = na, x2 = na, y2 = na, color = color.green)


if newYear
    hh := high
    ll := low
    hhIndex := bar_index
    llIndex := bar_index
if not newYear
    if high > hh
        hh := high
        hhIndex := bar_index
        line.set_xy1(hhLine, x = hhIndex, y = hh)
        line.set_xy2(hhLine, x = hhIndex + 1, y = hh)
    if low < ll
        ll := low
        llIndex := bar_index
        line.set_xy1(llLine, x = llIndex, y = ll)
        line.set_xy2(llLine, x = llIndex + 1, y = ll)

if barstate.isconfirmed
    line.set_x2(hhLine, x = bar_index + 1)
    line.set_x2(llLine, x = bar_index + 1)

请注意，除非线条的原点坐标位于已加载的图表块内，否则线条不会加载。根据您的时间范围，这可能意味着它们不会出现，除非您及时回溯并检索到新块。在这种情况下，最好只使用 plot :

plot(hh)
plot(ll)

从今年的最高点到今天的 PineScript 画一条线

Draw A Line From This Years Highest High To Today PineScript

pine-script