将linreg V1函数转换为V5（Tradingview – Pine Script）

huangapple
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英文:

Converting a linreg V1 Function to V5 (Tradingview - Pine Script)

问题

我尝试将pine v1 linreg函数转换为v3（然后自动转换为V5），但一直出现以下错误：

输入处的语法错误 'end of line without line continuation'

这是V1的代码：

  1. val = linreg(source  -  avg(avg(highest(high, lengthKC), lowest(low, lengthKC)),sma(close,lengthKC)), 
  2.             lengthKC,0)

所以我在pine脚本语言参考中查找了一下，函数应该是这样的：

linreg(source, length, offset) → series

如果我没弄错的话，source应该是这样的：

source - avg(avg(highest(high, lengthKC), lowest(low, lengthKC)),

长度：

sma(close,lengthKC)),

和偏移：

lengthKC,0)

所以我在V3中写成了这样：

  1. val = linreg((source  -  avg(highest(high, lengthKC)), avg(lowest(low, lengthKC))), (avg(sma(close,lengthKC))), (lengthKC,0))

但它一直告诉我：

输入不匹配 ',' 期望 ')'

我尝试了一些其他解决方案，但无法解决这个问题。

编辑：
这是完整的代码：

  1. study(shorttitle = "SQZMOM_LB", title="Squeeze Momentum Indicator [LazyBear]", overlay=false)
  3. length = input(20, title="BB Length")
  4. mult = input(2.0,title="BB MultFactor")
  5. lengthKC=input(20, title="KC Length")
  6. multKC = input(1.5, title="KC MultFactor")
  8. useTrueRange = input(true, title="Use TrueRange (KC)", type=bool)
  10. // Calculate BB
  11. source = close
  12. basis = sma(source, length)
  13. dev = multKC * stdev(source, length)
  14. upperBB = basis + dev
  15. lowerBB = basis - dev
  17. // Calculate KC
  18. ma = sma(source, lengthKC)
  19. range = useTrueRange ? tr : (high - low)
  20. rangema = sma(range, lengthKC)
  21. upperKC = ma + rangema * multKC
  22. lowerKC = ma - rangema * multKC
  24. sqzOn  = (lowerBB > lowerKC) and (upperBB < upperKC)
  25. sqzOff = (lowerBB < lowerKC) and (upperBB > upperKC)
  26. noSqz  = (sqzOn == false) and (sqzOff == false)
  28. val = linreg((source  -  avg(highest(high, lengthKC)), avg(lowest(low, lengthKC))), (avg(sma(close,lengthKC))), (lengthKC,0))
  30. bcolor = iff( val > 0, 
  31.             iff( val > nz(val[1]), lime, green),
  32.             iff( val < nz(val[1]), red, maroon))
  33. scolor = noSqz ? blue : sqzOn ? black : gray 
  34. plot(val, color=bcolor, style=histogram, linewidth=4)
  35. plot(0, color=scolor, style=cross, linewidth=2)
英文:

I tried to convert pine v1 linreg function to v3 (and afterwards convert it automatically to V5) but I kept getting this error:

> syntax error at input 'end of line without line continuation'

This is the V1 code

  1. val = linreg(source  -  avg(avg(highest(high, lengthKC), lowest(low, lengthKC)),sma(close,lengthKC)), 
  2.             lengthKC,0)

So I looked it up in the pine script language reference and the function should look like this:

> linreg(source, length, offset) → series

If I'm correct, the source should be this:

> source - avg(avg(highest(high, lengthKC), lowest(low, lengthKC)),

Length:

> sma(close,lengthKC)),

And Offset:

> lengthKC,0)

So I wrote it like this in V3:

val = linreg((source - avg(highest(high, lengthKC)), avg(lowest(low, lengthKC))), (avg(sma(close,lengthKC))), (lengthKC,0))

But it keeps telling me

> mismatched input ',' expecting ')'

I played around with some other solutions but couldnt figure out how to solve the problem.

EDIT:
This is the full code:

  1. study(shorttitle = &quot;SQZMOM_LB&quot;, title=&quot;Squeeze Momentum Indicator [LazyBear]&quot;, overlay=false)
  3. length = input(20, title=&quot;BB Length&quot;)
  4. mult = input(2.0,title=&quot;BB MultFactor&quot;)
  5. lengthKC=input(20, title=&quot;KC Length&quot;)
  6. multKC = input(1.5, title=&quot;KC MultFactor&quot;)
  8. useTrueRange = input(true, title=&quot;Use TrueRange (KC)&quot;, type=bool)
  10. // Calculate BB
  11. source = close
  12. basis = sma(source, length)
  13. dev = multKC * stdev(source, length)
  14. upperBB = basis + dev
  15. lowerBB = basis - dev
  17. // Calculate KC
  18. ma = sma(source, lengthKC)
  19. range = useTrueRange ? tr : (high - low)
  20. rangema = sma(range, lengthKC)
  21. upperKC = ma + rangema * multKC
  22. lowerKC = ma - rangema * multKC
  24. sqzOn  = (lowerBB &gt; lowerKC) and (upperBB &lt; upperKC)
  25. sqzOff = (lowerBB &lt; lowerKC) and (upperBB &gt; upperKC)
  26. noSqz  = (sqzOn == false) and (sqzOff == false)
  28. val = linreg((source  -  avg(highest(high, lengthKC)), avg(lowest(low, lengthKC))), (avg(sma(close,lengthKC))), (lengthKC,0))
  30. bcolor = iff( val &gt; 0, 
  31.             iff( val &gt; nz(val[1]), lime, green),
  32.             iff( val &lt; nz(val[1]), red, maroon))
  33. scolor = noSqz ? blue : sqzOn ? black : gray 
  34. plot(val, color=bcolor, style=histogram, linewidth=4)
  35. plot(0, color=scolor, style=cross, linewidth=2)```
  38. </details>
  41. # 答案1
  42. **得分**: 0
  44. 原始代码略有不同。
  46. `val` 的定义如下：

val = linreg(source - avg(avg(highest(high, lengthKC), lowest(low, lengthKC)), sma(close, lengthKC)), lengthKC, 0)

  2. 如果您在指标列表中搜索 *Squeeze Momentum Indicator [LazyBear]*，您可以找到该指标。
  4. [![enter image description here][1]][1]
  6. <details>
  7. <summary>英文:</summary>
  9. The original code is slightly different.
  11. The definition of `val` is as below:
  13.     val = linreg(source - avg(avg(highest(high, lengthKC), lowest(low, lengthKC)),sma(close,lengthKC)), lengthKC,0)
  15. If you search for *Squeeze Momentum Indicator [LazyBear]* in the indicator list, you can find the indicator.
  17. [![enter image description here][1]][1]
  20.   [1]: https://i.stack.imgur.com/FVVk8.png
  22. </details>

huangapple
  • 本文由 发表于 2023年6月12日 17:21:38
  • 转载请务必保留本文链接：https://go.coder-hub.com/76455215.html
  • algorithmic-trading
  • pine-script
  • pine-script-v5
  • trading
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