Candlestick Evaluation for Amibroker (AFL)

//Apply the code to an indicator, Open up the Param window, AND drag the CandlePattern# slider left AND right. 
//Each CandlePattern number selects a different candle pattern. 
//The selected pattern is identified on your chart with a vertical Blue line. 
//The white line on your chart represents the resulting Equity if the pattern were traded. 
//Thus you can see the pattern’s profitability over your data history. 
//Try different tickers, they will all behave differently. The exit delay, i.e., the delay after the candle pattern occurred before the price is sampled, is adjustable. 
//Presumably some longer patterns require more bars to show profits/losses. 
//The Name of the candle pattern AND a number of other stats are also shown in the Title. 
//Add your own price patterns AND metrics. 

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);  
function CandlePattern(P)  
{  
global PatternName;  
if(P == 0) { PatternName = "NearDoji"; Pv = (abs(O-C)<= ((H-L)*0.1)); }  
else if(P == 1) { PatternName = "BlackCandle"; Pv = (O>C); }  
else if(P == 2) { PatternName = "LongBlackCandle"; Pv = (O>C AND (O-C)/(.001+H-L)>.6); }  
else if(P == 3) { PatternName = "SmallBlackCandle"; Pv = ((O>C) AND ((H-L)>(3*(O-C)))); }  
else if(P == 4) { PatternName = "WhiteCandle"; Pv = (C>O); }  
else if(P == 5) { PatternName = "LongWhiteCandle"; Pv = ((C>O) AND ((C-O)/(.001+H-L)>.6)); }  
else if(P == 6) { PatternName = "SmallWhiteCandle"; Pv = ((C>O) AND ((H-L)>(3*(C-O)))); }  
else if(P == 7) { PatternName = "BlackMaubozu"; Pv = (O>C AND H==O AND C==L); }  
else if(P == 8) { PatternName = "WhiteMaubozu"; Pv = (C>O AND H==C AND O==L); }  
else if(P == 9) { PatternName = "BlackClosingMarubozu"; Pv = (O>C AND C==L); }  
else if(P == 10) { PatternName = "WhiteClosingMarubozu"; Pv = (C>O AND C==H); }  
else if(P == 11) { PatternName = "BlackOpeningMarubozu"; Pv = (O>C AND O==H); }  
else if(P == 12) { PatternName = "WhiteOpeningMarubozu"; Pv = (C>O AND O==L); }  
else if(P == 13) { PatternName = "HangingMan"; Pv = (((H-L)>4*(O-C)) AND ((C-L)/(.001+H-L)>= 0.75) AND ((O-L)/(.001+H-L)>= 0.75)); }  
else if(P == 14) { PatternName = "Hammer"; Pv = (((H-L)>3*(O-C)) AND ((C-L)/(.001+H-L)>0.6) AND ((O-L)/(.001+H-L)>0.6)); }  
else if(P == 15) { PatternName = "InvertedHammer"; Pv = (((H-L)>3*(O-C)) AND ((H-C)/(.001+H-L)>0.6) AND ((H-O)/(.001+H-L)>0.6)); }  
else if(P == 16) { PatternName = "ShootingStar"; Pv = (((H-L)>4*(O-C)) AND ((H-C)/(.001+H-L)>= 0.75) AND ((H-O)/(.001+H-L)>= 0.75)); }  
else if(P == 17) { PatternName = "BlackSpinningTop"; Pv = ((O>C) AND ((H-L)>(3*(O-C))) AND (((H-O)/(.001+H-L))<.4) AND (((C-L)/(.001+H-L))<.4)); }  
else if(P == 18) { PatternName = "WhiteSpinningTop"; Pv = ((C>O) AND ((H-L)>(3*(C-O))) AND (((H-C)/(.001+H-L))<.4) AND (((O-L)/(.001+H-L))<.4)); }  
else if(P == 19) { PatternName = "BearishAbandonedBaby"; Pv = ((C1 == O1) AND (C2>O2) AND (O>C) AND (L1>H2) AND (L1>H)); }  
else if(P == 20) { PatternName = "BearishEveningDojiStar"; Pv = ((C2>O2) AND ((C2-O2)/(.001+H2-L2)>.6) AND (C2<O1) AND (C1>O1) AND ((H1-L1)>(3*(C1-O1))) AND (O>C) AND (O<O1)); }  
else if(P == 21) { PatternName = "DarkCloudCover"; Pv = (C1>O1 AND ((C1+O1)/2)>C AND O>C AND O>C1 AND C>O1 AND (O-C)/(.001+(H-L)>0.6)); }  
else if(P == 22) { PatternName = "BearishEngulfing"; Pv = ((C1>O1) AND (O>C) AND (O>= C1) AND (O1>= C) AND ((O-C)>(C1-O1))); }  
else if(P == 23) { PatternName = "ThreeOutsideDownPattern"; Pv = ((C2>O2) AND (O1>C1) AND (O1>= C2) AND (O2>= C1) AND ((O1-C1)>(C2-O2)) AND (O>C) AND (C<C1)); }  
else if(P == 24) { PatternName = "BullishAbandonedBaby"; Pv = ((C1 == O1) AND (O2>C2) AND (C>O) AND (L2>H1) AND (L>H1)); }  
else if(P == 25) { PatternName = "BullishMorningDojiStar"; Pv = ((O2>C2) AND ((O2-C2)/(.001+H2-L2)>.6) AND (C2>O1) AND (O1>C1) AND ((H1-L1)>(3*(C1-O1))) AND (C>O) AND (O>O1)); }  
else if(P == 26) { PatternName = "BullishEngulfing"; Pv = ((O1>C1) AND (C>O) AND (C>= O1) AND (C1>= O) AND ((C-O)>(O1-C1))); }  
else if(P == 27) { PatternName = "ThreeOutsideUpPattern"; Pv = ((O2>C2) AND (C1>O1) AND (C1>= O2) AND (C2>= O1) AND ((C1-O1)>(O2-C2)) AND (C>O) AND (C>C1)); }  
else if(P == 28) { PatternName = "BullishHarami"; Pv = ((O1>C1) AND (C>O) AND (C<= O1) AND (C1<= O) AND ((C-O)<(O1-C1))); }  
else if(P == 29) { PatternName = "ThreeInsideUpPattern"; Pv = ((O2>C2) AND (C1>O1) AND (C1<= O2) AND (C2<= O1) AND ((C1-O1)<(O2-C2)) AND (C>O) AND (C>C1) AND (O>O1)); }  
else if(P == 30) { PatternName = "PiercingLine"; Pv = ((C1<O1) AND (((O1+C1)/2)<C) AND (O<C) AND (O<C1) AND (C<O1) AND ((C-O)/(.001+(H-L))>0.6)); }  
else if(P == 31) { PatternName = "BearishHarami"; Pv = ((C1>O1) AND (O>C) AND (O<= C1) AND (O1<= C) AND ((O-C)<(C1-O1))); }  
else if(P == 32) { PatternName = "ThreeInsideDownPattern"; Pv = ((C2>O2) AND (O1>C1) AND (O1<= C2) AND (O2<= C1) AND ((O1-C1)<(C2-O2)) AND (O>C) AND (C<C1) AND (O<O1)); }  
else if(P == 33) { PatternName = "ThreeWhiteSoldiers"; Pv = (C>O*1.01) AND (C1>O1*1.01) AND (C2>O2*1.01) AND (C>C1) AND (C1>C2) AND (O<C1) AND (O>O1) AND (O1<C2) AND (O1>O2) AND (((H-C)/(H-L))<.2) AND (((H1-C1)/(H1-L1))<.2) AND (((H2-C2)/(H2-L2))<.2); }  
else if(P == 34) { PatternName = "DarkCloudCover"; Pv = (C1>O1*1.01) AND (O>C) AND (O>H1) AND (C>O1) AND (((C1+O1)/2)>C) AND (C>O1) AND (MA(C,13)-Ref(MA(C,13),-4)>0); }  
else if(P == 35) { PatternName = "ThreeBlackCrows"; Pv = (O>C*1.01) AND (O1>C1*1.01) AND (O2>C2*1.01) AND (C<C1) AND (C1<C2) AND (O>C1) AND (O<O1) AND (O1>C2) AND (O1<O2) AND (((C-L)/(H-L))<.2) AND (((C1-L1)/(H1-L1))<.2) AND (((C2-L2)/(H2-L2))<.2); }  
else if(P == 36) { PatternName = "doji"; Pv = (O == C); }  
else if(P == 37) { PatternName = "GapUp"; Pv = GapUp(); }  
else if(P == 38) { PatternName = "GapDown"; Pv = GapDown(); }  
else if(P == 39) { PatternName = "BigGapUp"; Pv = L>1.01*H1; }  
else if(P == 40) { PatternName = "BigGapDown"; Pv = H<0.99*L1; }  
else if(P == 41) { PatternName = "HugeGapUp"; Pv = L>1.02*H1; }  
else if(P == 42) { PatternName = "HugeGapDown"; Pv = H<0.98*L1; }  
else if(P == 43) { PatternName = "DoubleGapUp"; Pv = GapUp() AND Ref(GapUp(),-1); }  
else if(P == 44) { PatternName = "DoubleGapDown"; Pv = GapDown() AND Ref(GapDown(),-1); }  
return Pv;  
}  
P = Param("CandlePattern#",20,0,44,1);  
PP = Param("Profit period",0,0,10,1);  
CandlePatternTrue = CandlePattern(P);  
NextBar = Ref(CandlePatternTrue,-1);  
ProfitFormula = (Ref(C,PP)-O)/O*100;  
Profit = IIf(NextBar,ProfitFormula,0);  
SetOption("AllowSameBarExit",True);  
Short = 0;  
Cover = 0;  
Buy = Nextbar AND Ref(C>O,-1);  
BuyPrice = Open;  
Sell = Buy; //Ref(Buy,-PP);  
SellPrice = C;  
SecondBar = BarIndex()==2;  
ProfitArray = Cum(Profit);  
SimpleProfit = LastValue(ProfitArray);  
CompoundedProfit = (LastValue(AMA2(1,(SecondBar==1),(SecondBar==0)*(1 + Profit/100)))-1)*100;  
Upday = IIf(NextBar, (C-O)>0,0);  
downDay = IIf(NextBar, (C-O)<0,0);  
PatternColor = IIf(CandlePatternTrue,2,1);  
NumUpDays = LastValue(Cum(UpDay));  
NumDownDays = LastValue(Cum(downDay));  
NumPatterns = LastValue(Cum(CandlePatternTrue ));  
LowestInDisplay = Lowest(ValueWhen(Status("barVisible"),L));  
HighestInDisplay = Highest(ValueWhen(Status("Barvisible"),H));  
Plot(C,"Close",colorBlack,64);  
Plot(ProfitArray,"",2,1|styleOwnScale);  
Plot(IIf(CandlePatternTrue,L-0.005,Null),"",6,styleHistogram);  
PlotShapes(UpDay*shapeUpArrow,colorBrightGreen,0,L);  
PlotShapes(downDay*shapeDownArrow,colorRed,0,H);  
Title = "\nCANDLE PATTERN ANALYSIS\n\n"+  
"Open: "+NumToStr(O,1.2)+"\n"+  
"High: "+NumToStr(H,1.2)+"\n"+  
"Low: "+NumToStr(L,1.2)+"\n"+  
"Close: "+NumToStr(C,1.2)+"\n\n"+  
"Candle Pattern: "+PatternName+"\n"+  
"Candle Pattern# "+NumToStr(P,1.0)+"\n"+  
"#Patterns found: "+NumToStr(NumPatterns ,1.0)+"\n"+  
"#Updays: "+NumToStr(NumUpDays,1.0,False)+  
" ["+NumToStr(Nz(NumUpDays/NumPatterns*100),1.0,False)+"%]\n"+  
"#DownDays: "+NumToStr(NumDownDays,1.0,False)+  
" ["+NumToStr(Nz(NumDownDays/numpatterns*100),1.0,False)+"%]\n\n"+  
"Profit at cursor: "+NumToStr(Profit,1.4)+"%\n"+  
"Ave.Profit/Pattern:"+NumToStr(Nz(SimpleProfit/NumPatterns),1.4)+"%\n"+  
"Tot.Simple profit: "+NumToStr(SimpleProfit,1.4)+"%\n"+  
"Tot.Comp. profit: "+NumToStr(CompoundedProfit,1.4)+"%\n";