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Hammer and Earn for Amibroker (AFL)

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/*******************************************************
Candlestick Commentary
Load this file into the Commentary Option of the Analysis tab. Green arrows
indicate bullish candles.
Red arrows indicate bearish candles. Scroll down the commentary for comments. 
This is a work in progress. Thanks to all on this forum whose code I may have
incorporated into this file. Comments are from Steve Nison "Japanese
Candlestick Charting Techniques" and the LitWick web site.
**********************************************************/

/*Body Colors*/
whiteBody=C>=O;
blackBody=O>C;

/*Body Size*/
smallBodyMaximum=0.0025;//less than 0.25%
LargeBodyMinimum=0.01;//greater than 1.0%
smallBody=(O>=C*(1-smallBodyMaximum) AND whiteBody) 
         OR (C>=O*(1-smallBodyMaximum) AND blackBody);
largeBody=(C>=O*(1+largeBodyMinimum) AND whiteBody) 
         OR C<=O*(1-largeBodyMinimum) AND blackBody;
mediumBody=NOT LargeBody AND NOT smallBody;
identicalBodies=abs(abs(Ref(O,-1)-Ref(C,-1))-abs(O-C)) < 
          abs(O-C)*smallBodyMaximum;
realBodySize=abs(O-C);


/*Shadows*/
smallUpperShadow=(whiteBody AND H<=C*(1+smallBodyMaximum))
               OR (blackBody AND H<=O*(1+smallBodyMaximum));
smallLowerShadow=(whiteBody AND L>=O*(1-smallBodyMaximum)) 
               OR (blackBody AND L>=C*(1-smallBodyMaximum));
largeUpperShadow=(whiteBody AND H>=C*(1+largeBodyMinimum)) 
               OR (blackBody AND H>=O*(1+largeBodyMinimum));
largeLowerShadow=(whiteBody AND L<=O*(1-largeBodyMinimum)) 
              OR (blackBody AND L<=C*(1-largeBodyMinimum));

/*Gaps*/
upGap=  IIf(Ref(blackBody,-1)AND whiteBody AND O>Ref(O,-1),1,
        IIf(Ref(blackbody,-1) AND blackBody AND C>Ref(O,-1),1,
        IIf(Ref(whiteBody,-1) AND whiteBody AND O>Ref(C,-1),1,
        IIf(Ref(whiteBody,-1) AND blackBody AND C>Ref(C,-1),1,0))));

downGap=IIf(Ref(blackBody,-1)AND whiteBody AND C<Ref(C,-1),1,
        IIf(Ref(blackbody,-1) AND blackBody AND O<Ref(C,-1),1,
        IIf(Ref(whiteBody,-1) AND whiteBody AND C<Ref(O,-1),1,
        IIf(Ref(whiteBody,-1) AND blackBody AND O<Ref(O,-1),1,0))));
/*Candle Definitions*/
spinningTop=mediumBody;
doji=CdDoji(threshold=0.05);/*abs(C-O) <= (C*smallBodyMaximum) OR
(abs(O-C)<=((H-L)*0.1));*/
dojiStar=doji AND (upgap OR downgap)AND Ref(LargeBody,-1);
marabuzu=LargeBody AND smallUpperShadow AND smallLowerShadow;


shootingStar=/*(NOT largeBody AND smallLowerShadow AND LargeUpperShadow) OR*/
    smallLowerShadow AND NOT doji AND
   ((blackBody AND abs(O-H)>2*realBodySize) OR
   (whiteBody AND abs(H-C)>2*realBodySize));
Hammer = (((H-L)>3*(O-C)) AND ((C-L)/(0.001+H-L)>0.6) AND ((O-L)/(0.001+H-L)>0.6));   
InvertedHammer = (((H-L)>3*(O-C)) AND ((H-C)/(0.001+H-L)>0.6) AND ((H-O)/(0.001+H-L)>0.6)); 
//Hammer=smallUpperShadow AND NOT doji AND
 //  ((blackBody AND abs(C-L)>2*realBodySize) OR
//   (whiteBody AND abs(L-O)>2*realBodySize));

tweezerTop=abs(H-Ref(H,-1))<=H*0.0025;
tweezerBottom=abs(L-Ref(L,-1))<=L*0.0025;
engulfing=
   IIf(blackBody AND Ref(blackbody,-1) AND C<Ref(C,-1) AND O>Ref(O,-1),1,
   IIf(blackBody AND Ref(whiteBody,-1) AND O>Ref(C,-1) AND C<Ref(O,-1),1,
   IIf(whitebody AND Ref(whitebody,-1) AND C>Ref(C,-1) AND O<Ref(O,-1),1,
   IIf(whiteBody AND Ref(blackBody,-1) AND C>Ref(O,-1)AND O<Ref(C,-1),1,0))));
BullishHarami=
   IIf(blackbody AND Ref(blackBody,-1) AND O<Ref(O,-1) AND C>Ref(L,-1),1,
   IIf(blackBody AND Ref(whiteBody,-1) AND C>Ref(L,-1) AND O<Ref(C,-1),1,
   IIf(whiteBody AND Ref(whiteBody,-1) AND C<Ref(C,-1) AND O>Ref(L,-1),1,
   IIf(whiteBody AND Ref(blackBody,-1) AND O>Ref(L,-1) AND
C<Ref(O,-1),1,0))));
BearishHarami=
IIf(blackbody AND Ref(blackBody,-1) AND O<Ref(H,-1) AND C>Ref(C,-1),1,
   IIf(blackBody AND Ref(whiteBody,-1) AND C>Ref(O,-1) AND O<Ref(H,-1),1,
   IIf(whiteBody AND Ref(whiteBody,-1) AND C<Ref(H,-1) AND O>Ref(O,-1),1,
   IIf(whiteBody AND Ref(blackBody,-1) AND O>Ref(C,-1) AND
C<Ref(H,-1),1,0))));

/*Maximum High Today - (MHT)
Today is the maximum High in the last 5 days*/
MHT=  HHV(H,5)==H;

/*Maximum High Yesterday - (MHY)
Yesterday is the maximum High in the last 5 days*/
MHY=   HHV(H,5)==Ref ( H, -1);

/*Minimum Low Today - (MLT)
Today is the minimum Low in the last 5 days*/
MLT=   LLV(L,5)==L;

/*Minimum Low Yesterday - (MLY)
Yesterday is the minimum Low in the last 5 days*/
MLY=   LLV(L,5)==Ref(L,-1);

/*DOJI definitions*/

/*Doji Today - (DT)*/
DT = abs(C-O) <= (C*smallBodyMaximum) OR
(abs(O-C)<=((H-L)*0.1));

/* Doji Yesterday - (DY)*/
DY = abs(Ref ( C, -1)-Ref(O,-1)) <= Ref ( C, -1) *smallBodyMaximum OR
abs (Ref ( O, -1)-Ref(C,-1)) <= (Ref ( H, -1 ) - Ref ( L, -1 ) )*0.1;
//mine//
O1 = Ref(O,-1);O2 = Ref(O,-2);  
H1 = Ref(H,-1);H2 = Ref(H,-2);  
L1 = Ref(L,-1);L2 = Ref(L,-2);  
C1 = Ref(C,-1);C2 = Ref(C,-2);
 
HammerSpecial=(Hammer AND BullishHarami);// OR (ShootingStar AND Harami);
InvertedHammerSpecial= (InvertedHammer AND BearishHarami); 
x1=HammerSpecial;
GetreadyBuy=Ref(x1, -1) AND Close > Ref( High , -1 ) OR Ref(x1, -2) AND Close > Ref( High , -2 )OR Ref(x1, -3) AND Close > Ref( High , -3 );
GetreadyBuy1=((NOT Ref(GetreadyBuy,-1)) AND (NOT Ref(GetreadyBuy,-2)));
GetreadyBuy3=GetreadyBuy1 AND GetReadyBuy;
Buy=Ref(GetreadyBuy, -1) AND C>Ref(L,-1);
Buy1=(NOT Ref(Buy,-1));
Buy3=Buy1 AND Buy;
BuyStop=Ref(GetreadyBuy,-1) AND (Ref(L,-1));
x2=InvertedHammerSpecial;
GetreadySell=Ref(x2, -1) AND Close < Ref( Low , -1 ) OR Ref(x2, -2) AND Close < Ref( Low , -2 )OR Ref(x2, -3) AND Close < Ref( Low , -3 );
GetreadySell1=((NOT Ref(GetreadySell,-1)) AND (NOT Ref(GetreadySell,-2)));
GetreadySell3=GetreadySell1 AND GetReadySell;

Short=Ref(GetreadySell, -1) AND C<Ref(H,-1);
ShortStop=Ref(GetreadySell,-1) AND (Ref(H,-1));
Short1=(NOT Ref(Short,-1));
Short3=Short1 AND Short;

ShortPrice=ValueWhen(Short,C,1);
BuyPrice=ValueWhen(Buy,C,1);


Sell=C<Ref(L,-2);
Cover= C>Ref(L,-2);



Sell1=((NOT Ref(Sell,-1)) AND (NOT Ref(Sell,-2)));
Sell2=Sell1 AND Sell;

Cover1=((NOT Ref(Cover,-1)) AND (NOT Ref(Cover,-2)));
Cover2=Cover1 AND Cover;




_SECTION_BEGIN("Title");
if( Status("action") == actionIndicator ) 
(
Title = EncodeColor(colorYellow)+ "Winston system - 1-hammer, 2-getready, up/down arrow=Enter position, Orange colour short and white colour long, white dot trailing profit exit long and orange dot trailing profit exit short, triangles are pivot markers" + " - " +  Name() + " - " + EncodeColor(colorYellow)+ Interval(2) + EncodeColor(colorWhite) +
 "  - " + Date() +" - "+"\n" +EncodeColor(colorYellow) + "Vol= "+ WriteVal(V)+"\n"+ EncodeColor(colorYellow)+
WriteIf(x1, "1-Hammer Special"+C+"  ","")+
WriteIf(GetreadyBuy3, "2-Get Ready to Buy"+C+"  ","")+
WriteIf(Buy3, "BUY AT "+C+"  ","")+
WriteIf(BuyStop, "BUYSTOP AT"+Ref(L,-2)+"  ","")+
WriteIf(Sell2, "Exit Buy at "+C+"  ","")+




WriteIf(x2, "1-Inverted Hammer Special"+C+"  ","")+
WriteIf(GetreadySell3, "2-Get Ready to Short"+C+"  ","")+
WriteIf(Short3, " SHORT AT "+C+"  ","")+
WriteIf(ShortStop, "SHORTSTOP AT "+Ref(H,-2)+"  ","")+
WriteIf(Cover2, "Exit short at "+C+"  ",""));


Plot(C,"Close",colorWhite,64);
PlotShapes(x1*shapeDigit1,colorWhite,0,L); 
PlotShapes(GetreadyBuy3*shapeDigit2,colorWhite,0,L);
PlotShapes(Buy3*shapeUpArrow,colorWhite,0,L,Offset=-45);
PlotShapes(Sell2*shapeSmallCircle,colorWhite,0,H,Offset=45);

PlotShapes(x2*shapeDigit1,colorOrange,0,H,Offset=25); 
PlotShapes(GetreadySell3*shapeDigit2,colorOrange,0,H,Offset=25);
PlotShapes(Short3*shapeDownArrow,colorOrange,0,H,Offset=-45);
PlotShapes(Cover2*shapeSmallCircle,colorOrange,0,L,Offset=-45);

AlertIf( Ref(GetreadyBuy3, -1), "SOUND C:\\Windows\\Media\\Ringin.wav", "Get Ready To Buy", 2 );
AlertIf( Ref(Buy3, -1), "SOUND C:\\Windows\\Media\\Ringin.wav", "Buy Now", 2 );
AlertIf( Ref(GetreadySell3, -1), "SOUND C:\\Windows\\Media\\Ringin.wav", "Get Ready To Short", 2 );
AlertIf( Ref(Short3, -1), "SOUND C:\\Windows\\Media\\Ringin.wav", "Short Now", 2 );

RSIperiod	= 14;	// Param("RSI p",3,14,30,1);
Percent 		= 5;	//	Param("ZIG %",8,9,15,1);
EMAperiod 	= 9;	//Param("EMA p",4,5,10,1);
HHVperiod 	= 8;	//Param("HHV p",3,5,10,1);
NumLine 		= 2;	//Param("Num Lines",3,1,20,1);

Base = DEMA(RSI(RSIperiod),EMAperiod);


for( i = 1; i <= numline; i++ )
{
ResBase = LastValue(Peak(Base,Percent,i));
SupBase = LastValue(Trough(Base,Percent,i));
Plot(ValueWhen( ResBase==Base, HHV(H,HHVperiod) ), "Resist Level", colorDarkRed, styleLine);
Plot(ValueWhen( supbase==Base, LLV(L,HHVperiod) ), "Support Level", colorDarkGreen, styleLine);
}




//Code to automatically identify pivots

//********************************** */

// -- what will be our lookback range for the hh and ll?
farback=Param("How Far back to go",100,50,5000,10);
nBars = Param("Number of bars", 12, 5, 40);


// -- Create 0-initialized arrays the size of barcount

aHPivs = H - H;

aLPivs = L - L;

// -- More for future use, not necessary for basic plotting

aHPivHighs = H - H;

aLPivLows = L - L;

aHPivIdxs = H - H;

aLPivIdxs = L - L;

nHPivs = 0;

nLPivs = 0;

lastHPIdx = 0;

lastLPIdx = 0;

lastHPH = 0;

lastLPL = 0;

curPivBarIdx = 0;

// -- looking back from the current bar, how many bars 

// back were the hhv and llv values of the previous 

// n bars, etc.?

aHHVBars = HHVBars(H, nBars);

aLLVBars = LLVBars(L, nBars);

aHHV = HHV(H, nBars);

aLLV = LLV(L, nBars);

// -- Would like to set this up so pivots are calculated back from

// last visible bar to make it easy to "go back" and see the pivots

// this code would find. However, the first instance of 

// _Trace output will show a value of 0

aVisBars = Status("barvisible");

nLastVisBar = LastValue(Highest(IIf(aVisBars, BarIndex(), 0)));

_TRACE("Last visible bar: " + nLastVisBar);

// -- Initialize value of curTrend

curBar = (BarCount-1);

curTrend = "";

if (aLLVBars[curBar] < 

aHHVBars[curBar]) {

curTrend = "D";

}

else {

curTrend = "U";

}

// -- Loop through bars. Search for 

// entirely array-based approach

// in future version

for (i=0; i<farback; i++) {

curBar = (BarCount - 1) - i;

// -- Have we identified a pivot? If trend is down...

if (aLLVBars[curBar] < aHHVBars[curBar]) {

// ... and had been up, this is a trend change

if (curTrend == "U") {

curTrend = "D";

// -- Capture pivot information

curPivBarIdx = curBar - aLLVBars[curBar];

aLPivs[curPivBarIdx] = 1;

aLPivLows[nLPivs] = L[curPivBarIdx];

aLPivIdxs[nLPivs] = curPivBarIdx;

nLPivs++;

}

// -- or current trend is up

} else {

if (curTrend == "D") {

curTrend = "U";

curPivBarIdx = curBar - aHHVBars[curBar];

aHPivs[curPivBarIdx] = 1;

aHPivHighs[nHPivs] = H[curPivBarIdx];

aHPivIdxs[nHPivs] = curPivBarIdx;

nHPivs++;

}

// -- If curTrend is up...else...

} 

// -- loop through bars

} 

// -- Basic attempt to add a pivot this logic may have missed

// -- OK, now I want to look at last two pivots. If the most 

// recent low pivot is after the last high, I could

// still have a high pivot that I didn't catch

// -- Start at last bar

curBar = (BarCount-1);

candIdx = 0;

candPrc = 0;

lastLPIdx = aLPivIdxs[0];

lastLPL = aLPivLows[0];

lastHPIdx = aHPivIdxs[0];

lastHPH = aHPivHighs[0];

if (lastLPIdx > lastHPIdx) {

// -- Bar and price info for candidate pivot

candIdx = curBar - aHHVBars[curBar];

candPrc = aHHV[curBar]; 

if (

lastHPH < candPrc AND

candIdx > lastLPIdx AND

candIdx < curBar) {


// -- OK, we'll add this as a pivot...

aHPivs[candIdx] = 1;

// ...and then rearrange elements in the 

// pivot information arrays

for (j=0; j<nHPivs; j++) {

aHPivHighs[nHPivs-j] = aHPivHighs[nHPivs-

(j+1)];

aHPivIdxs[nHPivs-j] = aHPivIdxs[nHPivs-(j+1)];

}

aHPivHighs[0] = candPrc ;

aHPivIdxs[0] = candIdx;

nHPivs++;

} 

} else {


// -- Bar and price info for candidate pivot

candIdx = curBar - aLLVBars[curBar];

candPrc = aLLV[curBar]; 

if (

lastLPL > candPrc AND

candIdx > lastHPIdx AND

candIdx < curBar) {


// -- OK, we'll add this as a pivot...

aLPivs[candIdx] = 1;

// ...and then rearrange elements in the 

// pivot information arrays

for (j=0; j<nLPivs; j++) {

aLPivLows[nLPivs-j] = aLPivLows[nLPivs-(j+1)];

aLPivIdxs[nLPivs-j] = aLPivIdxs[nLPivs-(j+1)];

}

aLPivLows[0] = candPrc;

aLPivIdxs[0] = candIdx;

nLPivs++;

}

}

// -- Dump inventory of high pivots for debugging

/*

for (k=0; k<nHPivs; k++) {

_TRACE("High pivot no. " + k

+ " at barindex: " + aHPivIdxs[k] + ", " 

+ WriteVal(ValueWhen(BarIndex()==aHPivIdxs[k], 

DateTime(), 1), formatDateTime)

+ ", " + aHPivHighs[k]);

}

*/

// -- OK, let's plot the pivots using arrows

PlotShapes(IIf(aHPivs==1, shapeSmallDownTriangle, shapeNone), colorRed, 0,High, Offset=-15);

PlotShapes(IIf(aLPivs==1, shapeSmallUpTriangle , shapeNone), colorGreen, 0, Low, Offset=-15);
//dist = 1.5*ATR(10); 
//Plot( (aHPivs==1),"HIGH Line ",colorGreen,styleLine,Null,Null,10|styleNoRescale); 
//Plot( (aLPivs==1),"LOW Line ",colorBrightGreen,styleLine, styleThick |styleOwnScale);

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