Pine 脚本/外部数据替代方案 [英] Pine Script / External Data Alternative

问题描述

据我所知，Pine Script 目前不接受外部数据.我有 1 个趋势线的静态 x1v 和 x2v 坐标，每条趋势线有 2000 个符号，我想为每个符号输入 Pine Script.当 syminfo.tickerid 与这些值的字符串匹配时，我希望 Pine Script 仅为相应的符号绘制趋势线.

As far as I know, Pine Script does not accept external data currently. I have static x1v and x2v coordinates for 1 trendline each for 2000 symbols that I would like to input into Pine Script for each symbol. When syminfo.tickerid matches with a string for these values, I would like Pine Script to plot trend lines only for the respective symbol.

我尝试过的一种方法如下:

One approach I tried is as following:

//@version=4
study('TEST', overlay=true, title = "test")

x1v = int(na)
x2v = int(na)

x1v := iff(syminfo.ticker == 'AAPL', 20,x1v)
x2v := iff(syminfo.ticker == 'AAPL', 6,x2v)
x1v := iff(syminfo.ticker == 'MSFT', 20,x1v)
x2v := iff(syminfo.ticker == 'MSFT', 6,x2v)
x1v := iff(syminfo.ticker == 'OPEN', 20,x1v)
x2v := iff(syminfo.ticker == 'OPEN', 6,x2v)
x1v := iff(syminfo.ticker == 'SPY', 20,x1v)
x2v := iff(syminfo.ticker == 'SPY', 6,x2v)

myline = line.new(x1=bar_index-x1v, y1=high[x1v], x2=bar_index-x2v, y2=high)
line.set_extend(myline, extend.both)
line.delete(myline[1])

对 2000 个符号执行此操作，生成 4000 多行，Pine Script 不接受它说:脚本在#f2"中有太多局部变量(5187):#mut_0、#mut_1、#mut_0、#mut_1、#mut_0...限制为1100

Doing this for 2000 symbols, produces 4000+ lines and Pine Script does not accept it saying: Script has too many local variables (5187) in "#f2": #mut_0, #mut_1, #mut_0, #mut_1, #mut_0... The limit is 1100

即使局部变量是相同的 x1v 和 x2v.

Even though the local variables are the same x1v and x2v.

是否有其他选择可以克服这个问题或使其更紧凑?

Is there any other option to overcome this or to make this more compact?

推荐答案

这是一种方法.
我已经包含了两种方法:

Here's a way to do it.
I've included 2 methods:

• f_fill_array_all_tickers()
  • 看起来更干净
  • 可能会更慢.
  • 看起来不太干净
  • 可能会更快，具体取决于代码在列表中的位置.

  该脚本有一个输入复选框 i_fill_array_all_tickers 可让您在 2 种方法之间进行选择.

  The script has an input checkbox i_fill_array_all_tickers to let you choose between the 2 methods.

  由于可读性/可维护性，我个人会选择 f_fill_array_all_tickers().

  I'd personally go for f_fill_array_all_tickers() because of readability/maintainability.

  //@version=4
  study("Lines", "LI", true)
  
  var bool        i_fill_array_all_tickers    = input(false, "Fill array with ALL tickers")
  
  var string[]    a_ticker    = array.new_string()
  var int[]       a_x1        = array.new_int()
  var int[]       a_x2        = array.new_int()
  
  var line        myLine      = line.new(na, na, na, na, extend=extend.both)
  
  f_add(_ticker, _x1, _x2) =>
      if array.includes(a_ticker, _ticker)
          // update existing ticker
          idx = array.indexof(a_ticker, _ticker)
          array.set(a_x1, idx, _x1)
          array.set(a_x2, idx, _x2)
      else
          // insert new ticker
          array.push(a_ticker,    _ticker)
          array.push(a_x1,        _x1)
          array.push(a_x2,        _x2)
  
  
  f_fill_array_all_tickers() =>
      //fill array with data for ALL tickers
      f_add("AAPL", 20, 6)
      f_add("MSFT", 20, 6)
      f_add("OPEN", 20, 6)
      f_add("SPY" , 20, 6)
      
  f_fill_array_current_ticker_only() =>
      //fill array with data for only the CURRENT tickers
      if      syminfo.ticker == "AAPL" 
          f_add(syminfo.ticker, 20, 6)
      else if syminfo.ticker == "MSFT"
          f_add(syminfo.ticker, 20, 6)
      else if syminfo.ticker == "OPEN"
          f_add(syminfo.ticker, 20, 6)
      else if syminfo.ticker == "MSFT"
          f_add(syminfo.ticker, 20, 6)
  
  f_fill_array() =>
      if i_fill_array_all_tickers
          f_fill_array_all_tickers()
      else
          f_fill_array_current_ticker_only()
          
  if barstate.isfirst
      f_fill_array() 
  
  if barstate.islast and array.includes(a_ticker, syminfo.ticker)
      idx = array.indexof(a_ticker, syminfo.ticker)
      x1  = array.get(a_x1, idx)
      x2  = array.get(a_x2, idx)
      line.set_xy1(myLine, bar_index - x1, high[x1])
      line.set_xy2(myLine, bar_index - x2, high)
  

  最小化代码

  //@version=4
  study("Lines", "LI", true)
  
  var a_ticker = array.new_string()
  var a_x1 = array.new_int()
  var a_x2 = array.new_int()
  var myLine = line.new(na, na, na, na, extend=extend.both)
  
  ai(a,v) => array.includes(a,v)
  ax(a,v) => array.indexof(a,v)
  as(a,i,v) => array.set(a,i,v)
  ag(a,i) => array.get(a,i)
  ap(a,v) => array.push(a,v)
  
  f(t,a,b) =>
      if ai(a_ticker,t)
          i = ax(a_ticker,t),as(a_x1,i,a),as(a_x2,i,b) 
      else 
          ap(a_ticker,t),ap(a_x1,a),ap(a_x2,b)
  
  a() => f("AAPL",20,6),f("MSFT",20,6),f("OPEN",20,6),f("SPY",20,6)
      
  if barstate.isfirst
      a() 
  
  if barstate.islast and ai(a_ticker, syminfo.ticker)
      idx = ax(a_ticker, syminfo.ticker)
      x1  = ag(a_x1, idx)
      x2  = ag(a_x2, idx)
      line.set_xy1(myLine, bar_index - x1, high[x1])
      line.set_xy2(myLine, bar_index - x2, high)
  

  这似乎有效，10 行，每行 100 个元素

  This seems to work, with 10 lines of 100 elements each

  //@version=4
  study("Lines", "LI", true)
  
  var a_ticker = array.new_string()
  var a_x1 = array.new_int()
  var a_x2 = array.new_int()
  var myLine = line.new(na, na, na, na, extend=extend.both)
  
  ai(a,v) => array.includes(a,v)
  ax(a,v) => array.indexof(a,v)
  as(a,i,v) => array.set(a,i,v)
  ag(a,i) => array.get(a,i)
  ap(a,v) => array.push(a,v)
  
  f(t,a,b) =>
      if ai(a_ticker,t)
          i = ax(a_ticker,t),as(a_x1,i,a),as(a_x2,i,b) 
      else 
          ap(a_ticker,t),ap(a_x1,a),ap(a_x2,b)
  
  a() => 
      f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),
      f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),
      f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),
      f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),
      f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),
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      f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),
      f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),
      f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6),f("AAPL",20,6)
  
  if barstate.isfirst
      a()
      
  if barstate.islast and ai(a_ticker, syminfo.ticker)
      idx = ax(a_ticker, syminfo.ticker)
      x1  = ag(a_x1, idx)
      x2  = ag(a_x2, idx)
      line.set_xy1(myLine, bar_index - x1, high[x1])
      line.set_xy2(myLine, bar_index - x2, high)
  

  小改进.
  当在最后一个柱上调用 a() 而不是 barstate.isfirst 时，运行时不必将所有历史柱上的数组保存在内存中.

  Little improvement.
  When calling a() on the last bar instead of barstate.isfirst, the runtime doesn't have to keep the arrays in memory on all the historical bars.

  if barstate.islast
      a()
      if ai(a_ticker, syminfo.ticker)
          idx = ax(a_ticker, syminfo.ticker)
          x1  = ag(a_x1, idx)
          x2  = ag(a_x2, idx)
          line.set_xy1(myLine, bar_index - x1, high[x1])
          line.set_xy2(myLine, bar_index - x2, high)
  

  这篇关于Pine 脚本/外部数据替代方案的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！