Combined MACD Candlestick Chart - Amibroker AFL Code

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////////////////////////////////////////////////////////////////
//afl by Ashutosh Srivastava (ashutosh.krsrivastava@gmail.com)//
////////////////////////////////////////////////////////////////
_SECTION_BEGIN("Price");
SetChartOptions(0,chartShowArrows|chartShowDates);
_N(Title = StrFormat("{{NAME}} - {{INTERVAL}} {{DATE}} Open %g, Hi %g, Lo %g, Close %g (%.1f%%) Vol " +WriteVal( V, 1.0 ) +" {{VALUES}}", O, H, L, C, SelectedValue( ROC( C, 1 )) ));
Plot( C, "Close", ParamColor("Color", colorBlack ), styleNoTitle | ParamStyle("Style") | GetPriceStyle() ); 
if( ParamToggle("Tooltip shows", "All Values|Only Prices" ) )
{
 ToolTip=StrFormat("Open: %g\nHigh:  %g\nLow:   %g\nClose:  %g (%.1f%%)\nVolume: "+NumToStr( V, 1 ), O, H, L, C, SelectedValue( ROC( C, 1 )));
}
_SECTION_END();

function DZBuy(indMACD, startPrB, N){
 Left = Param("Left", -100);
 Right = Param("Right", 100);
 Count = Param("Count", 0);
 Prob = Param("probability", 0);
 eps = Param("EPS", 0.001);
 yVal = Param("yValue", 0);
 k = Param("k", 0);
 delt = Param("Delta", 0);
 Value1 = Param("Value", 0);
 r=0;
 //return array is r
 indVal = indMACD;
 initVal = startPrB;
/* if (BarCount > N) {
  for (k = 0; k <=N-2; k++){
   r[k] = r[k+1];
  }
 r[N-1] = indVal[N-1];
 }else{
  j = BarCount - 1;
  r[j] = indVal;
 }*/
 if (BarCount >= N){
  yVal = (Left+Right)/2;
  delt = yVal - Left;
  while(delt > 0.005 AND Value1 < 50) {
   Value1 = Value1 + 1;
   for(j1 = 0; j1 <= N-1; j1++){
    if(r[j1] < yVal){
     Count = Count + 1;
    }
   }
   prob = Count/N;
   if(prob > (initVal + eps)) {
    Right = yVal;
    yVal = (yVal + Left)/2;
   }
   if(prob < (initVal - eps)) {
    Left = yVal;
    yVal = (yVal + Right)/2;
   }   
   if(prob < (initVal + eps) AND prob > (initVal - eps)){
    Right = yVal;
    yVal = (yVal + Left)/2;
   }
   delt = yVal - Left;
   Count = 0;
  }
  if (Value1 != 500){
   Value1 = 0;
   //DZBuy = yVal;
   Right = 10000;
   Left = -10000;
   prob = 0;  
  }
/*  if (BarIndex() == LastValue(BarIndex())){
   printf("You have chosen too high accuracy for this system. Please try again.");
  }*/
 }
return yVal;
}



/////////////////////////////////////////////////////
function DZSell(indMACD, startPrS, N){
 Left = -100;
 Right = 100;
 Count = 0;
 Prob = 0;
 eps = 0.001;
 yVal = 0;
 k = 0;
 delt = 0;
 bNumb = 35775;
 bNumb1 = 30208;
 Value1 = 0;
 r=0;
 //return array is r
 indVal = indMACD;
 initVal = startPrS;
 /*if (BarCount > N) {
  for (k = 0; k <=N-2; k++){
   r[k] = r[k+1];
  }
 r[N-1] = indVal[N-1];
 }else{
  j = BarCount - 1;
  r[j] = indVal;
 }*/
 if (BarCount >= N){
  yVal = (Right + Left)/2;
  delt = Right - yVal;
  while(delt > 0.005 AND Value1 < 50) {
   Value1 = Value1 + 1;
   for(j1 = 0; j1 <= N-1; j1++){
    if(r[j1] < yVal){
     Count = Count + 1;
    }
   }
   prob = Count/N;
   if(prob > (initVal + eps)) {
    Left = yVal;
    yVal = (yVal + Right)/2;
   }
   if(prob < (initVal - eps)) {
    Right = yVal;
    yVal = (yVal + Left)/2;
   }   
   if(prob < (initVal + eps) AND prob > (initVal - eps)){
    Left = yVal;
    yVal = (yVal + Right)/2;
   }
   delt = Right - yVal;
   Count = 0;
  }
  if (Value1 != 500){
   Value1 = 0;
   //DZSell = yVal;
   Right = 10000;
   Left = -10000;
   prob = 0;  
  }
 /* if (BarIndex() == LastValue(BarIndex())){
   printf("You have chosen too high accuracy for this system. Please try again.");
  }*/
 }
return yVal;
}

ind = MACD(12,26) * 10;
N = Param("N", 70);
startPrB = 0.12;
startPrS = 0.12;
BuyZone = 0;
SellZone = 0;
Indicator = 0;

BuyZone = DZBuy(ind, startPrB, N);
SellZone = DZSell(ind, startPrS, N);
indicator = MA(MACD(12,26), 9) *10;

Plot(ind,"Indicator", colorBlue);
Plot(indicator,"slow", colorBlack);
Plot(BuyZone, "BuyZone", colorGreen);
Plot(SellZone, "SellZone", colorRed);