gordon rose (617).afl

一个更精度的平滑涵数, 可用于股票交易系统.用于Amibroker 平台

//------------------------------------------------------------------------------
//
//  Formula Name:    Gordon Rose
//  Author/Uploader: Gordon Rose 
//  E-mail:          
//  Date/Time Added: 2004-02-05 00:05:21
//  Origin:          Strong desire to use pivots and patterns as basis for trading setups and trading.
//  Keywords:        pivot fibonacci tcz
//  Level:           semi-advanced
//  Flags:           system,exploration,indicator
//  Formula URL:     http://www.amibroker.com/library/formula.php?id=617
//  Details URL:     http://www.amibroker.com/library/detail.php?id=617
//
//------------------------------------------------------------------------------
//
//  Both indicator and exploration code for combination of fibonacci
//  retracements identified in "Fibonacci for the Active Trader" by Derrik
//  Hobbes. Determines pivots, draws retracements, and explores for them.
//
//------------------------------------------------------------------------------

// **************************
// BEING EXPLORATION CODE
// **************************

// -- what will be our lookback range for the hh and ll?
nBars = Param("Number of bars", 12, 5, 40);
bTrace = Param("Include trace output", 1, 0, 1);
nNoPivsInSetup = Param("No. Pivs in Setup", 4, 3, 4, 1);
bShowTCZ = Param("Show TCZ", 1, 0, 1); 
nMinBarsBtwPivs = Param("Min. number of bars btw. pivots", 1, 1, 10, 1);
nMinPctBtwPivs = Param("Min. percent diff. btw. pivots", .05, .04, .2, .01);
bLastBarCanBePiv = Param("Last bar can be a pivot", 1, 0, 1); 
retrcTolerance = .01;
tczTolerance = .005;
nNumBarsToScan = 120;

// -- added from exploration version 20040204
nExploreBarIdx = 0;
nExploreDate = 0;
nCurDateNum = 0;
DN = DateNum();
DT = DateTime();

// -- key exploration variables
bTCZLong = False;
bTCZShort = False;
nAnchorPivIdx = 0;

ADX8 = ADX(8);

// 1 - INDICATOR, 2 - COMMENTARY, 3 - SCAN, 
// 4 - EXPLORATION, 5 - BACKTEST / Optimize 
if(Status("action")==1) {
	bDraw = True;
	bUseLastVis = Param("Use last visible bar", 1, 0, 1);
} else {
	bDraw = False;
	bUseLastVis = False;
	bTrace = False;
	nExploreDate = Status("rangetodate");
	for (i=LastValue(BarIndex());i>=0;i--) {
		nCurDateNum = DN[i];
		if (nCurDateNum == nExploreDate) {
			nExploreBarIdx = i;
		}
	}
// -- if(Status("action")==1...
}

GraphXSpace=7;

// -- basic candle chart
// -- if this appears inside if block, strange
//    drawing results!
PlotOHLC(Open, High, Low, Close, 
	"BIdx = " + BarIndex() + 
	"\n" + "O = " + O + "\n"+"H = "+ H + "\n"+"L  = " + L 
	+ "\n"+"C ",
	colorBlack, styleCandle); 

if (bDraw) {
	Plot(MA(C, 21), "21 bar MA", colorAqua, 
		styleLine+styleNoRescale+styleNoLabel);
	Plot(MA(C, 55), "55 bar MA", colorGreen, 
		styleLine+styleNoRescale+styleNoLabel);
	//Plot(MA(C, 233), "233 bar MA", colorDarkRed, 
	//	styleLine+styleNoRescale+styleNoLabel);
}

// -- Create 0-initialized arrays the size of barcount
aHPivs = H - H;
aLPivs = L - L;
aHPivHighs = H - H;
aLPivLows = L - L;
aHPivIdxs = H - H;
aLPivIdxs = L - L;
aAddedHPivs = H - H;
aAddedLPivs = L - L;
aLegVol = H - H;
aRetrcVol = H - H;

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);

// -- Initialize value of curTrend
nLastVisBar = LastValue(
	Highest(IIf(Status("barvisible"), BarIndex(), 0)));

curBar = IIf(nlastVisBar > 0 AND bUseLastVis, nlastVisBar, 
	IIf(Status("action")==4 AND nExploreBarIdx > 0, nExploreBarIdx,
	LastValue(BarIndex())));

curTrend = "";
if (aLLVBars[curBar] < aHHVBars[curBar]) 
	curTrend = "D";
else 
	curTrend = "U";

// -- Loop through bars. Search for 
//    entirely array-based approach
//    in future version
/* *******************
	Find main pivots
******************* */

// -- Make sure there are enough bars!
if (curBar >= nNumBarsToScan) {
	for (i=0; i<nNumBarsToScan; i++) {
	
		// -- value of curBar dependent on two parameters
		curBar = IIf(nlastVisBar > 0 AND bUseLastVis, 
			nlastVisBar-i, 
			IIf(Status("action")==4 AND nExploreBarIdx > 0, 
			nExploreBarIdx-i,
			LastValue(BarIndex())-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
	} 
}
/* *******************
	Found main pivots
******************* */

/* *************************
	Finding missed pivot(s)
************************* */

// -- Start at last bar. Reestablish curBar
curBar = 
	IIf(nlastVisBar > 0 AND bUseLastVis, 
	nlastVisBar, 
	IIf(Status("action")==4 AND nExploreBarIdx > 0, 
	nExploreBarIdx,
	LastValue(BarIndex()))
	);

// -- Make sure I found at least two of each above.
if (nHPivs >= 2 AND nLPivs >= 2) {

	lastLPIdx = aLPivIdxs[0];
	lastLPL = aLPivLows[0];
	
	lastHPIdx = aHPivIdxs[0];
	lastHPH = aHPivHighs[0];
	
	nLastHOrLPivIdx = Max(lastLPIdx, lastHPIdx);
	
	nAddPivsRng = curBar - nLastHOrLPivIdx;
	aLLVAfterLastPiv = LLV(L, nAddPivsRng);  
	nLLVAfterLastPiv = aLLVAfterLastPiv[curBar];
	aLLVIdxAfterLastPiv = LLVBars(L, nAddPivsRng);  
	nLLVIdxAfterLastPiv = curBar - aLLVIdxAfterLastPiv[curBar];
	aHHVAfterLastPiv = HHV(H, nAddPivsRng); 
	nHHVAfterLastPiv = aHHVAfterLastPiv[curBar];
	aHHVIdxAfterLastPiv = HHVBars(H, nAddPivsRng); 
	nHHVIdxAfterLastPiv = curBar - aHHVIdxAfterLastPiv[curBar];
	
	// -- Later want to add last high pivot only if
	//    not in buy mode from last and still in trade

	/*
		Note - I'm only interested in adding pivots if I'm in 
		a higher-highs or lower-lows scenario
	*/

	
	// -- OK, let's start where the last high pivot occurs after the
	//    last Low pivot
	if (lastHPIdx > lastLPIdx) {
	
		/*	There are at least two possibilities here. One is that
	   		the previous high was higher, indicating that this is a 
	   		possible short retracement or one in the making.
	   		The other is that the previous high was lower, indicating 
	   		that this is a possible long retracement in the working. 
			However, both depend on opposing pivots. E.g., if I find 
			higher highs, what if I have lower lows?  
		
			If the highs are descending, then I can consider:
	   			- a lower low, and leave it at that
	   			- a higher high and higher low
	   			- a lower low and another lower high
		*/
		if (aHPivHighs[0] < aHPivHighs[1]) {
	
			if (nLLVAfterLastPiv < aLPivLows[0] AND 
				(nLLVIdxAfterLastPiv - lastHPIdx - 1) >= nMinBarsBtwPivs
				AND nLLVIdxAfterLastPiv != curBar	) {
	
				// -- OK, we'll add this as a pivot. 
				//    Mark it for plotting...
				aLPivs[nLLVIdxAfterLastPiv] = 1;
				aAddedLPivs[nLLVIdxAfterLastPiv] = 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] = nLLVAfterLastPiv;
				aLPivIdxs[0] = nLLVIdxAfterLastPiv;
				nLPivs++;
	
			// -- Test whether to add piv given last piv is high 
			//    AND we have lower highs	
			}
	
		// -- Here, the last piv is a high piv, and we have 
		//    higher-highs. The most likely addition is a 
		//    Low piv that is a retracement.
		} else {
	
			if (nLLVAfterLastPiv > aLPivLows[0] AND 
				(nLLVIdxAfterLastPiv - lastHPIdx - 1) >= nMinBarsBtwPivs
				AND nLLVIdxAfterLastPiv != curBar	) {
	
				// -- OK, we'll add this as a pivot. 
				//    Mark it for plotting...
				aLPivs[nLLVIdxAfterLastPiv] = 1;
				aAddedLPivs[nLLVIdxAfterLastPiv] = 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] = nLLVAfterLastPiv;
				aLPivIdxs[0] = nLLVIdxAfterLastPiv;
				nLPivs++;
	
			// -- Test whether to add piv given last piv is high 
			//    AND we have lower highs	
			}	
		// -- The last piv is a high and we have higher highs 
		//    OR lower highs
		}
	
	/* ****************************************************************
		Still finding missed pivot(s). Here, the last piv is a low piv.
	**************************************************************** */
	} else {
	
		// -- First case, lower highs
		if (aHPivHighs[0] < aHPivHighs[1]) {
	
			if (nHHVAfterLastPiv < aHPivHighs[0] AND 
				(nHHVIdxAfterLastPiv - lastLPIdx - 1) >= nMinBarsBtwPivs
				AND nHHVIdxAfterLastPiv != curBar	) {
	
				// -- OK, we'll add this as a pivot. 
				//    Mark that for plotting
				aHPivs[nHHVIdxAfterLastPiv] = 1;
				aAddedHPivs[nHHVIdxAfterLastPiv] = 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] = nHHVAfterLastPiv;
				aHPivIdxs[0] = nHHVIdxAfterLastPiv;
				nHPivs++;
	
			// -- Test whether to add piv given last piv is high 
			//    AND we have lower highs	
			}
	
		// -- Second case when last piv is a low piv, higher highs 
		//    Most likely addition is high piv that is a retracement.
		//    Considering adding a high piv as long as it is higher
		} else {
	
			// -- Where I have higher highs,
			if (nHHVAfterLastPiv > aHPivHighs[0] AND 
				(nHHVIdxAfterLastPiv - lastLPIdx - 1) >= nMinBarsBtwPivs
				AND nHHVIdxAfterLastPiv != curBar	) {
	
				// -- OK, we'll add this as a pivot. 
				//    Mark it for plotting...
				aHPivs[nHHVIdxAfterLastPiv] = 1;
				aAddedHPivs[nHHVIdxAfterLastPiv] = 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] = nHHVAfterLastPiv;
				aHPivIdxs[0] = nHHVIdxAfterLastPiv;
				nHPivs++;
	
			// -- Test whether to add piv given last piv is high 
			//    AND we have lower highs	
			}
	
		}
			
	} 

// -- If there are at least two of each
}

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