Индикатор целевого роста (версия 3)

В индикатор AT-target_v3 добавлено отображение целей на истории в виде дополнительных кривых линий

--[[
AutoTrade target indicator
shows target growth/fall
varsion 3
line gr shows real growth
line tgr_up shows target growth
line tgr_dwn shows target fall
line ln_up shows target growth history
line ln_dwn shows target fall history
--]]
Settings=              
        {                          
            Name = "AT-target_v3",   -- indicator name
            per=20,     -- period		
			growth=1.0, -- growth by %
			fall=1.0, -- fall by %
			xshift=0, -- shifth by x axis
			showln=1, -- 1-show lines 0-do not show
            line=                                     
                {                               
                    {  
                        Name = "gr",
                        Type =TYPE_LINE,
                        Width = 1,
                        Color = RGB(0,0,0) -- black
                    },
                    {  
                        Name = "tgr_up",
                        Type =TYPE_LINE,
                        Width = 1,
                        Color = RGB(0,0,255) -- blue
                    },
                    {  
                        Name = "tgr_dwn",
                        Type =TYPE_LINE,
                        Width = 1,
                        Color = RGB(255,0,0) -- red
                    },
                    {  
                        Name = "ln_up",
                        Type =TYPE_LINE,
                        Width = 1,
                        Color = RGB(0,0,255) -- blue
                    },
                    {  
                        Name = "ln_dwn",
                        Type =TYPE_LINE,
                        Width = 1,
                        Color = RGB(255,0,0) -- red
                    }						
                }
       }


function Init()  	
  return 5
end


function OnCalculate(index)
  
  sz = Size()
  per = Settings.per
  gr = Settings.growth
  fl = Settings.growth
  sh = Settings.xshift
  sl = Settings.showln  

  if index == sz then    
    for i = 1, sz do 
      -- crearing 	
      SetValue(i, 1, nil) 
	  SetValue(i, 2, nil) 
	  SetValue(i, 3, nil) 
	  SetValue(i, 4, nil) 
	  SetValue(i, 5, nil) 	  
    end   
    for i = sz-per-sh, sz-sh do
	  -- paint line 
      v = (C(sz-sh) - C(sz-per-sh+1))*(i-(sz-per-sh+1))/per + C(sz-per-sh+1)
	  v2 = (C(sz-per-sh+1)*(1+gr/100) - C(sz-per-sh+1))*(i-(sz-per-sh+1))/per + C(sz-per-sh+1)
	  v3 = -(C(sz-per-sh+1)*(1+fl/100) - C(sz-per-sh+1))*(i-(sz-per-sh+1))/per + C(sz-per-sh+1)
      SetValue(i, 1, v) 
	  SetValue(i, 2, v2) 
	  SetValue(i, 3, v3) 
    end 
    if sl == 1 then  	
      for i = per, sz-sh do
	    -- paint line       
	    v4 = (C(i-per+1)*(1+gr/100) - C(i-per+1)) + C(i-per+1)
	    v5 = -(C(i-per+1)*(1+fl/100) - C(i-per+1)) + C(i-per+1)      
	    SetValue(i, 4, v4) 
	    SetValue(i, 5, v5) 	  
      end 	
	end 
	-- last value
	if sh == 0 then 
	  return v, v2, v3, v4, v5
	end 
  end    

end