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Below request re-posting..... please help
I am using below P&F afl, box size used in below afl is ok for Nifty but if used on Copper and Gold, due to wrong box size Chart becomes of no use.
I was reading ebook on P&F which says
Please box size to be used for copper and gold also how to use 2% instead of
boxsize=IIf(C<0.05, 0.001,
IIf(C>=0.05 AND C<0.1, 0.002,
IIf(C>=0.1 AND C<0.5, 0.005,
IIf(C>=0.5 AND C<2, 0.01,
IIf(C>=2 AND C<5, 0.02,
IIf(C>=5 AND C<10, 0.05,
IIf(C>=10 AND C<50, 0.1,
IIf(C>=50 AND C<100, 0.2,
IIf(C>=100 AND C<200, 0.5,
IIf(C>=200 AND C<500, 1,
2 ))))))))));
or any other suggestion so that same P&F afl can be used for all type of stocks
// dont trail stop loss in range bound market, keep recent high/low as stop loss
// re-entry as P&F signal in same direction after fake opposite signal
_SECTION_BEGIN("Point and Figure1");
//AFL P&F Chart for Amibroker Indicator window. Based on High/low prices.
//Based on code in AB help files
//Reverse is 3 boxes.
SetBarsRequired(100000,100000);
//Size for P&F boxes
boxsize=IIf(C<0.05, 0.001,
IIf(C>=0.05 AND C<0.1, 0.002,
IIf(C>=0.1 AND C<0.5, 0.005,
IIf(C>=0.5 AND C<2, 0.01,
IIf(C>=2 AND C<5, 0.02,
IIf(C>=5 AND C<10, 0.05,
IIf(C>=10 AND C<50, 0.1,
IIf(C>=50 AND C<100, 0.2,
IIf(C>=100 AND C<200, 0.5,
IIf(C>=200 AND C<500, 1,
2 ))))))))));
Box = LastValue(boxsize);
HX = round((H/box)*10)/10;
LX = round((L/box)*10)/10;
RH = floor(HX);
FL = ceil(LX);
// initialize first element
j = 0;
Reverse = 3; // reversal requirement
PFC[j] = FL[0];
PFO[j] = PFC[j] + 1;
down = 1; // By default the first bar is a down bar.
up = 0;
swap = 0;
// perform the loop that produces PF Chart
for( i = 1; i < BarCount; i++ )
{
if( FL
<= PFC[j]-1 && down) //continue down
{
PFC[j] = FL;
PFO[j] = PFC[j] + 1;
}
else
{
if( RH >= PFC[j] + Reverse && down) //Change direction to up
{
j++;
swap = 1;
PFC[j] = RH;
PFO[j] = PFC[j]-1;
}
}
if( RH >= PFC[j] + 1 && up) //Continue up
{
PFC[j] = RH;
PFO[j] = PFC[j] - 1;
}
else
{
if( FL <= PFC[j] - Reverse && up) //Change direction to down
{
j++;
PFC[j] = FL;
PFO[j] = PFC[j] + 1;
swap = 1;
}
}
if( swap )
{
swap = 0;
if( up )
{
up = 0;
down = 1;
}
else
{
up = 1;
down = 0;
}
}
}
delta = BarCount - j-1;
PFO = Ref( PFO, -delta );
PFC = Ref( PFC, -delta );
// High-Low range sets the height of the P&F bar
H = IIf(Ref(PFC,-1)>Ref(PFO,-1),Ref(HHV(PFC,1),-1)-1,Max(PFO,PFC))*Box;
L = IIf(Ref(PFC,-1)<Ref(PFO,-1),Ref(LLV(PFC,1),-1)+1,Min(PFO,PFC))*Box;
O =
IIf(Ref(PFC,-1)>Ref(PFO,-1),Ref(HHV(PFC,1),-1)-1,IIf(Ref(PFC,-1)<Ref(PFO,-1),Ref(LLV(PFC,1),-1)+1,PFO))*Box;
// the difference between Open AND Close should be set to box size
// the sign decides if X or O are plotted
C = O + Box * IIf( PFC > PFO, 1,-1);
GraphXSpace = 2;
Title ="" + Name()+ " PF H: " + H+ ", L: " + L+", Box: "+ box
+ ", Reversal: " + reverse;
Plot( C, "P&F Chart Close", IIf( PFC > PFO, colorBlue, colorRed ),styleCandle+styleNoLabel+stylePointAndFigure);
hbar1 = H ;
hbar2 = Ref(H,-2) ;
lbar1 = L ;
lbar2 = Ref(L,-2) ;
Buy = IIf( hbar1 > hbar2 AND PFC > PFO ,True,False);
Sell = IIf(lbar1 < lbar2 AND PFC < PFO ,True,False);
Buy = ExRem( Buy, Sell );
Sell = ExRem( Sell, Buy );
PlotShapes(shapeSmallUpTriangle * Buy, colorGreen, 0, L -2);
PlotShapes(shapeSmallDownTriangle * Sell, colorOrange, 0, H -2);
_SECTION_END();