help with Guppy Buy sell

SetChartOptions(0,chartShowArrows|chartShowDates);
GraphXSpace=Param("GraphXSpace",0,0,100,1);
    dec = (Param("Decimals",2,0,7,1)/10)+1;
SetChartBkColor(ParamColor("Outer Panel", colorBlack));
SetChartBkGradientFill(ParamColor("Upper Chart", colorDarkGrey), ParamColor("Lower Chart", colorDarkGrey));

Title = EncodeColor(55)+  Title = Name() + "     " + EncodeColor(32) + Date() +
"      " + EncodeColor(5) + "{{INTERVAL}}  " +
    EncodeColor(55)+ "     Open = "+ EncodeColor(52)+ WriteVal(O,dec) +
    EncodeColor(55)+ "     High = "+ EncodeColor(5) + WriteVal(H,dec) +
    EncodeColor(55)+ "      Low = "+ EncodeColor(32)+ WriteVal(L,dec) +
    EncodeColor(55)+ "    Close = "+ EncodeColor(7)+ WriteVal(C,dec)+
    EncodeColor(55)+ "    Volume = "+ EncodeColor(11)+ WriteVal(V,1);
///////////////////////
colorHighliter = IIf(C >= O, ColorRGB(0, 128, 0), ColorRGB(128, 0, 0));
DemandPoint = (Ref(L, -1) < Ref(L, -2)) & (L < Ref(L, -1)) & (L < Ref(L, 1)) & (Ref(L, 1) < Ref(L, 2));

//Supply Point
//colorSupplyPoint = ParamColor("Supply Line", ColorRGB(255, 128, 0));
SupplyPoint = (Ref(H, -1) > Ref(H, -2)) & (H > Ref(H, -1)) & (H > Ref(H, 1)) & (Ref(H, 1) > Ref(H, 2));

CountTrendBars = 0;
CurrentBar = BarCount - 1;
dx0 = dx1 = dy0 = dy1 = 0;
sx0 = sx1 = sy0 = sy1 = 0;
//Price
SetBarFillColor(colorHighliter);
Plot(C, "Close", IIf(colorHighliter == ColorRGB(128, 0, 128), ColorRGB(255, 0, 255), IIf(colorHighliter == ColorRGB(128, 128, 0), ColorRGB(255, 255, 0), IIf(C > O, ColorRGB(0, 255, 0), IIf(C < O, ColorRGB(255, 0, 0), ColorRGB(255, 255, 255))))), styleCandle, Null, Null, 0, 0, 1);


side = 1;

From = Param("Start" , 3, 1, 120, 1 );
To   = Param("End" , 120, 1, 120, 1 );
incr = Param("Step" ,2, 1, 10, 1 );

WhichMA = ParamList("Which MA ?" , "SMA|EMA|WMA|WILDERS",1);
WhichStyle = ParamToggle("Cloud Style", "No|Yes",1);
Effect3D = ParamToggle( "3D effect?", "No|Yes", 1 );
Saturation = Param("Saturation" , 199, 0, 255 );
Brightness = Param("Brightness" , 255, 0, 255 ) ;


if (WhichStyle)
   iStyle = styleCloud;
else
   iStyle = styleLine;

for( i = From; i <To; i += incr)
{
 
  switch (WhichMA)
  {
    case "SMA":
      up = MA( C, i );
      down = MA( C, i + incr );
      break;

    case "WMA":
      up = WMA( C, i );
      down = WMA( C, i + incr );
      break;

     case "WILDERS":
      up = Wilders( C, i );
      down = Wilders( C, i + incr );
      break;

    default:
      up = EMA( C, i );
      down = EMA( C, i + incr );
      break;


  }

  if( Effect3D )
   side = IIf(up<=down AND Ref( up<=down, 1 ), 1, 0.6 );

   PlotOHLC( up,up,down,down, "", ColorHSB( 3*(i - 10),Saturation,side * Brightness), iStyle|styleNoLabel );

}