STATDIVPROF индикатор с эквити

Settings={
Name="STATDIVPROF",
period=30,
showprof=0,
  line=
  {
    {
      Name="curve",
      Color=RGB(0,0,255),
      Type=TYPE_LINE,
      Width=1
    },
    {
      Name="line",
      Color=RGB(255,0,0),
      Type=TYPE_LINE,
      Width=1
    }
  } 
}

function Init()
  prof=0    
  bp=0
  prevval=0    
  return 2
end

function OnCalculate(index)
  local sum1=0
  local sum2=0  
  local j=0    
  local dprof=0     
  
  if index < Settings.period then
    return nil, nil
  else   	
    for i=index-Settings.period+1, index do  
	  j = j + 1 
      if C(i) > O(i) then
        sum1 = sum1 + (C(i) - O(i))*V(i)*j
        sum2 = sum2 + (C(i) - O(i))*V(i)*j
      else
        sum2 = sum2 + (O(i) - C(i))*V(i)*j
      end  
    end 
    sum1 = sum1/sum2 
  end
  
  if index > Settings.period+1 then
     
    if prevval < 0.5 and sum1 >= 0.5 then
      bp=C(index)   	  
	end
    if prevval > 0.5 and sum1 <= 0.5 then
      if bp ~= 0 then
	    prof=prof+C(index)-bp
		bp=0
	  end 
	end	
	if bp ~= 0 then
	  dprof = C(index) - bp
	else
	  dprof = 0
	end
     
  end
  prevval=sum1   
  
  if Settings.showprof == 0 then
    return sum1, 0.5
  end

  if Settings.showprof == 1 then
    return prof+dprof, nil
  end

end