Hello experts,
I am a newbie and I need a clarification.
In the below AFL I want to filter Buy and short signals with respect to vwap.
Buy signal should generate only above vwap and no change in sell signal.
Short signal should only generate below vwap and no change in cover signal.
Here is the AFL :
_SECTION_BEGIN("Price1");
SetChartOptions(0,chartShowArrows|chartShowDates);
_N(Title = StrFormat("{{NAME}} - {{INTERVAL}} {{DATE}} Open %g, Hi %g, Lo %g, Close %g (%.1f%%) {{VALUES}}", O, H, L, C, SelectedValue( ROC( C, 1 ) ) ));
Plot( C, "Close", ParamColor("Color", colorDefault ), styleNoTitle | ParamStyle("Style") | GetPriceStyle() );
_SECTION_END();
_SECTION_BEGIN("Quick Profit Trading System");
SetBarsRequired(100000,0);
GraphXSpace = 15;
SetChartOptions(0,chartShowArrows|chartShowDates);
SetChartBkColor(ParamColor("bkcolor",ColorRGB(0,0, 0)));
GfxSetBkMode(0);
GfxSetOverlayMode(1);
SetBarFillColor(IIf(C>O,ParamColor("Candle UP Color", colorGreen),IIf(C<=O,ParamColor("Candle Down Color", colorRed),colorLightGrey)));
Plot(C,"\nPrice",IIf(C>O,ParamColor("Wick UP Color", colorDarkGreen),IIf(C<=O,ParamColor("Wick Down Color", colorDarkRed),colorLightGrey)),64,0,0,0,0);
SetTradeDelays(1,1,1,1);
_N(Title = StrFormat("{{NAME}} - {{INTERVAL}} {{DATE}} Open %g, Hi %g, Lo %g, Close %g (%.1f%%) {{VALUES}}", O, H, L, C, SelectedValue( ROC( C, 1 ) ) ));
Factor=Param("Factor",2,1,10,0.1);
Pd=Param("ATR Periods",11,1,100,1);
Up=(H+L)/2+(FactorATR(Pd));
Dn=(H+L)/2-(FactorATR(Pd));
iATR=ATR(Pd);
TrendUp=TrendDown=Null;
trend[0]=1;
changeOfTrend=0;
flag=flagh=0;
for (i = 1; i <BarCount-1; i++) {
TrendUp[i] = Null;
TrendDown[i] = Null;
trend[i]=1;
if (Close[i]>Up[i-1]) {
trend[i]=1;
if (trend[i-1] == -1) changeOfTrend = 1;
}
else if (Close[i]<Dn[i-1]) {
trend[i]=-1;
if (trend[i-1] == 1) changeOfTrend = 1;
}
else if (trend[i-1]==1) {
trend[i]=1;
changeOfTrend = 0;
}
else if (trend[i-1]==-1) {
trend[i]=-1;
changeOfTrend = 0;
}
if (trend[i]<0 && trend[i-1]>0) {
flag=1;
}
else {
flag=0;
}
if (trend[i]>0 && trend[i-1]<0) {
flagh=1;
}
else {
flagh=0;
}
if (trend[i]>0 && Dn[i]<Dn[i-1]){
Dn[i]=Dn[i-1];
}
if (trend[i]<0 && Up[i]>Up[i-1])
{ Up[i]=Up[i-1];
}
if (flag==1)
{ Up[i]=(H[i]+L[i])/2+(Factor*iATR[i]);;
}
if (flagh==1)
{ Dn[i]=(H[i]+L[i])/2-(Factor*iATR[i]);;
}
if (trend[i]==1) {
TrendUp[i]=Dn[i];
if (changeOfTrend == 1) {
TrendUp[i-1] = TrendDown[i-1];
changeOfTrend = 0;
}
}
else if (trend[i]==-1) {
TrendDown[i]=Up[i];
if (changeOfTrend == 1) {
TrendDown[i-1] = TrendUp[i-1];
changeOfTrend = 0;
}
}
}
Plot(TrendUp,"Trend",colorGreen);
Plot(TrendDown,"Down",colorRed);
Buy = trend==1;
Sell=trend==-1;
Buy=ExRem(Buy,Sell);
Sell=ExRem(Sell,Buy);
Short=Sell;
Cover=Buy;
BuyPrice=ValueWhen(Buy,C);
SellPrice=ValueWhen(Sell,C);
ShortPrice=ValueWhen(Short,C);
CoverPrice=ValueWhen(Cover,C);
Title = EncodeColor(colorWhite)+ "Quick Profit Trading System" + " - " + Name() + " - " + EncodeColor(colorRed)+ Interval(2) + EncodeColor(colorWhite) +
" - " + Date() +" - "+"\n" +EncodeColor(colorRed) +"Op-"+O+" "+"Hi-"+H+" "+"Lo-"+L+" "+
"Cl-"+C+" "+ "Vol= "+ WriteVal(V)+"\n"+
EncodeColor(colorLime)+
WriteIf (Buy , " GO LONG / Reverse Signal at "+C+" ","")+
WriteIf (Sell , " EXIT LONG / Reverse Signal at "+C+" ","")+"\n"+EncodeColor(colorYellow)+
WriteIf(Sell , "Total Profit/Loss for the Last Trade Rs."+(C-BuyPrice)+"","")+
WriteIf(Buy , "Total Profit/Loss for the Last trade Rs."+(SellPrice-C)+"","");
PlotShapes(IIf(Buy, shapeSquare, shapeNone),colorGreen, 0, L, Offset=-40);
PlotShapes(IIf(Buy, shapeSquare, shapeNone),colorLime, 0,L, Offset=-50);
PlotShapes(IIf(Buy, shapeUpArrow, shapeNone),colorWhite, 0,L, Offset=-45);
PlotShapes(IIf(Short, shapeSquare, shapeNone),colorRed, 0, H, Offset=40);
PlotShapes(IIf(Short, shapeSquare, shapeNone),colorOrange, 0,H, Offset=50);
PlotShapes(IIf(Short, shapeDownArrow, shapeNone),colorWhite, 0,H, Offset=-45);
TrendSL=IIf(trend==1,TrendUp,TrendDown);
for(i=BarCount-1;i>1;i--)
{
if(Buy[i] == 1)
{
entry = C[i];
sig = "BUY";
sl = TrendSL[i];
tar1 = entry + (entry * .0050);
tar2 = entry + (entry * .0092);
tar3 = entry + (entry * .0179);
bars = i;
i = 0;
}
if(Sell[i] == 1)
{
sig = "SELL";
entry = C[i];
sl = TrendSL[i];
tar1 = entry - (entry * .0050);
tar2 = entry - (entry * .0112);
tar3 = entry - (entry * .0212);
bars = i;
i = 0;
}
}
Offset = 20;
Clr = IIf(sig == "BUY", colorLime, colorRed);
ssl = IIf(bars == BarCount-1, TrendSL[BarCount-1], Ref(TrendSL, -1));
sl = ssl[BarCount-1];
Plot(LineArray(bars-Offset, tar1, BarCount, tar1,1), "", Clr, styleLine|styleDots, Null, Null, Offset);
Plot(LineArray(bars-Offset, tar2, BarCount, tar2,1), "", Clr, styleLine|styleDots, Null, Null, Offset);
Plot(LineArray(bars-Offset, tar3, BarCount, tar3,1), "", Clr, styleLine|styleDots, Null, Null, Offset);
messageboard = ParamToggle("Message Board","Show|Hide",1);
if (messageboard == 1 )
{
GfxSelectFont( "Tahoma", 13, 100 );
GfxSetBkMode( 1 );
GfxSetTextColor( colorWhite );
if ( sig =="BUY")
{
GfxSelectSolidBrush( colordarkgreen );
}
else
{
GfxSelectSolidBrush( colorRed );
}
pxHeight = Status( "pxchartheight" ) ;
xx = Status( "pxchartwidth");
Left = 1100;
width = 310;
x = 5;
x2 = 290;
y = pxHeight;
GfxSelectPen( colorGreen, 1);
GfxRoundRect( x, y - 98, x2, y , 7, 7 ) ;
GfxTextOut( ( "Quick Profit Trading System"),13,y-100);
GfxTextOut( (" "),27,y-100);
GfxTextOut( ("Last " + sig + " Signal came " + (BarCount-bars-1) * Interval()/60 + " mins ago"), 13, y-80) ; // The text format location
GfxTextOut( ("" + WriteIf(sig =="BUY",sig + " @ ",sig + " @") + " : " + entry), 13, y-60);
GfxTextOut( ("Trailing SL : " + Ref(TrendSL,-1) + " (" + WriteVal(IIf(sig == "SELL",entry-sl,sl-entry), 2.2) + ")"), 13, y-40);
GfxTextOut( ("Current P/L : " + WriteVal(IIf(sig == "BUY",(C-entry),(entry-C)),2.2)), 13, y-22);;
FS=Param("Font Size",30,11,100,1);
GfxSelectFont("Times New Roman", FS, 700, True );
GfxSetBkMode( colorWhite );
GfxSetTextColor( ParamColor("Color",colorGreen) );
Hor=Param("Horizontal Position",940,1,1200,1);
Ver=Param("Vertical Position",12,1,830,1);
GfxTextOut(""+C, Hor , Ver );
YC=TimeFrameGetPrice("C",inDaily,-1);
DD=Prec(C-YC,2);
xx=Prec((DD/YC)*100,2);
GfxSelectFont("Times New Roman", 11, 700, True );
GfxSetBkMode( colorBlack );
GfxSetTextColor(ParamColor("Color",colorYellow) );
GfxTextOut(""+DD+" ("+xx+"%)", Hor , Ver+45 );
}
_SECTION_END();
_SECTION_BEGIN("VWAP");
/*
The VWAP for a stock is calculated by adding the dollars traded for every
transaction in that stock ("price" x "number of shares traded") and dividing the total shares traded. A VWAP is computed from the Open of the market to the market Close, AND is calculated by Volume weighting all transactions during this time period
*/
Bars_so_far_today = 1 + BarsSince( Day() != Ref(Day(), -1));
StartBar = ValueWhen(TimeNum() == 091500, BarIndex());
TodayVolume = Sum(V,Bars_so_far_today);
IIf (BarIndex() >= StartBar, VWAP = Sum (C * V, Bars_so_far_today ) / TodayVolume,0);
Plot (VWAP,"VWAP",colorOrange, styleThick);
_SECTION_END();
Attached an image for reference