Please help create Buy/Sell Exploration/Scanner on AutoTrendLine w/ S&R

[nilagangkamote]

I found this in the net (Credit to the owner) and it seems that this afl is good. I'm trying to figure out on how to create buy/sell scanner and exploration but no to avail due to my limited knowledge in AFL. Please help to create buy/sell scanner and exploration. Attached is the chart sample. Thank you.


///////////////////////////////////////////////////////////////////////////////////////////
SetChartOptions(0,chartShowArrows|chartShowDates);
_N(Title = StrFormat("{{NAME}} - {{INTERVAL}} {{DATE}} ,{{VALUES}}", O, H, L, C, SelectedValue( ROC( C, 1 ) ) ));
Plot(C, "", IIf(O>=C, colorOrange, colorGreen),styleCandle);

SetChartBkGradientFill( ParamColor("Inner panel upper",colorBlack),ParamColor("Inner panel lower",colorBlack));
_N(Title = EncodeColor(colorWhite)+StrFormat(" {{NAME}} - {{INTERVAL}} {{DATE}} Open:%g, Close:%g ,{{VALUES}}",O,C ));

/////////////////////////////////////////////////////////////////////////////////////////////

Plot(EMA(C,13),"",colorYellow);
/////////////////////////////////////////////////////////////

per1=Param ("per1", 0.325,0.1,50,0.10);

per=per1;
x = Cum(1);
s1=L;
s11=H;
pS = TroughBars( s1, per, 1 ) == 0;
endt= SelectedValue(ValueWhen( pS, x, 1 ));
startt=SelectedValue(ValueWhen( pS, x, 2 ));
dtS =endt-startt;
endS = SelectedValue(ValueWhen( pS, s1, 1 ) );
startS = SelectedValue( ValueWhen( pS, s1, 1 ));
aS = (endS-startS)/dtS;
bS = endS;
trendlineS = aS * ( x -endt ) + bS;
g3= IIf(x>startt-10,trendlineS,-1e10);
Plot(g3,"",colorRed,styleDashed);

pR = PeakBars( s11, per, 1 ) == 0;
endt1= SelectedValue(ValueWhen( pR, x, 1 ));
startt1=SelectedValue(ValueWhen( pR, x, 2 ));
dtR =endt1-startt1;
endR = SelectedValue(ValueWhen( pR, s11, 1 ) );
startR = SelectedValue( ValueWhen( pR, s11, 1 ));
aR = (endR-startR)/dtR;
bR = endR;
trendlineR = aR * ( x -endt1 ) + bR;
g4= IIf(x>startT1-10,trendlineR,-1e10);
Plot(g4,"",colorGreen,styleDashed);
//////////////////////////////////////////////////////////////////////////////////////////////////
perc=per1;
x=BarIndex();xx=SelectedValue(x);
t1=SelectedValue(ValueWhen(PeakBars(C,perc)==0,x)) ;
H1=SelectedValue(ValueWhen(PeakBars(C,perc)==0,C)) ;
t11=SelectedValue(ValueWhen(TroughBars(C,perc)==0, x));
H11=SelectedValue(ValueWhen(TroughBars(C,perc)==0, C));
g=t1>t11;
shape=IIf(g,shapeDownArrow*(x==t1),shapeUpArrow*(x ==t11));
Color=IIf(g,colorRed,colorGreen);
PlotShapes(shape,color);
/////////////////////////////////////////////////////////////////////////////////////////////////

per=per1;

x = Cum(1);
s1=C;
s11=C;
pS = TroughBars( s1, per, 1 ) == 0;
endt= SelectedValue(ValueWhen( pS, x, 1 ));
startt=SelectedValue(ValueWhen( pS, x, 2 ));
dtS =endt-startt;
endS = SelectedValue(ValueWhen( pS, s1, 1 ) );
startS = SelectedValue( ValueWhen( pS, s1, 2 ));
aS = (endS-startS)/dtS;
bS = endS;
trendlineS = aS * ( x -endt ) + bS;
g3= IIf(x>startt-10,trendlineS,-1e10);
Plot(g3,"",colorRed,styleThick);

pR = PeakBars( s11, per, 1 ) == 0;
endt1= SelectedValue(ValueWhen( pR, x, 1 ));
startt1=SelectedValue(ValueWhen( pR, x, 2 ));
dtR =endt1-startt1;
endR = SelectedValue(ValueWhen( pR, s11, 1 ) );
startR = SelectedValue( ValueWhen( pR, s11, 2 ));
aR = (endR-startR)/dtR;
bR = endR;
trendlineR = aR * ( x -endt1 ) + bR;
g4= IIf(x>startT1-10,trendlineR,-1e10);
Plot(g4,"",colorGreen,styleThick);
//////////////////////////////////////////////////////////////////////////////