Cumulative Delta 請問XQ 有這個指標嗎? 假如沒有 有辦法自己做嗎?

inputs: 

UpColor(darkgreen), 

DownColor(red), 

MaxBlock(9999),

MinBlock(0),

ResetDeltaEachBar(0); 

variables: 

MyVol(0), 

Block(0),

color(yellow), 

firstrunthrough(true),

intrabarpersist MyCurrentBar(0), 

intrabarpersist VolTmp(0), 

intrabarpersist Deltac (0), 

intrabarpersist DeltaH (0), 

intrabarpersist DeltaL (0), 

intrabarpersist DeltaO (0); 

if firstrunthrough then begin // We need to do this in case indicator starts mid bar

    Voltmp = Iff(BarType < 2, Ticks, Volume);

    firstrunthrough = False;

    end;

if LastBarOnChart then begin   

if CurrentBar > MyCurrentBar then begin 

VolTmp = 0; 

MyCurrentBar = CurrentBar; 

if ResetDeltaEachbar = 1 then Deltac =0;

DeltaO = Deltac; 

DeltaH = Deltac; 

DeltaL = Deltac; 

end; 

    MyVol = Iff(BarType < 2, Ticks, Volume);

Block = Myvol - VolTmp;

if (Block >= MinBlock) and (Block <= MaxBlock) then

if Close <= InsideBid then

Deltac  = Deltac - MyVol + VolTmp

else if Close >= InsideAsk then 

Deltac = Deltac + MyVol - VolTmp ;  

VolTmp = MyVol ;

DeltaH = maxlist(DeltaH, Deltac); 

DeltaL = minlist(DeltaL, Deltac); 

 if Deltac <= Deltal[1] then 

 color = DownColor 

 else 

 if Deltac >= Deltah[1] then 

 color = UpColor

 else

 color = color[1]; 

plot1(DeltaO, "DO",color); 

Plot2(DeltaH, "DH",color); 

Plot3(DeltaL, "DL",color); 

plot4(Deltac, "DC",color); 

end;  

這是我在MultiCharts 找到的程式碼 但我不會轉換成XQ 感謝