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/* Heikin-Ashi(Koma-Ashi) with Moving Average Type */ SetChartOptions(2, chartWrapTitle); // Calculate Moving Average MAPeriod = Param("MA Period", 15, 1, 100); MAOpen = EMA(Open, MAPeriod); MAHigh = EMA(High, MAPeriod); MALow = EMA(Low, MAPeriod); MAClose = EMA(Close, MAPeriod); HaClose = (MAOpen + MAHigh + MALow + MAClose) / 4; HaOpen = AMA(Ref(HaClose, -1), 0.5); // for graph collapse for(i = 0; i <= MAPeriod; i++) HaClose[i] = Null; /* // same // HaOpen = (Ref(HaOpen, -1) + Ref(HaClose, -1)) / 2; HaOpen[ 0 ] = HaClose[ 0 ]; for(i = 1; i < BarCount; i++) { HaOpen[i] = (HaOpen[i - 1] + HaClose[i - 1]) / 2; } */ HaHigh = Max(MAHigh, Max(HaClose, HaOpen)); HaLow = Min(MALow, Min(HaClose, HaOpen)); // outs comments "BarIndex = " + BarIndex(); "Open = " + Open; "High = " + High; "Low = " + Low; "Close = "+ Close; "HaOpen = " + HaOpen; "HaHigh = " + HaHigh; "HaLow = " + HaLow; "HaClose = "+ HaClose; // Plot graphs _N(Title = StrFormat("{{NAME}} - {{INTERVAL}} {{DATE}} HaOpen %g, HaHigh %g, HaLow %g, HaClose %g (%.1f%%) {{VALUES}}", HaOpen, HaHigh, HaLow, HaClose, SelectedValue(ROC( HaClose, 1)))); PlotOHLC(HaOpen, HaHigh, HaLow, HaClose, _DEFAULT_NAME(), ParamColor("Color", colorBlack), styleCandle); /* ********************************** 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); // -- Title. Title = Name() + " (" + StrLeft(FullName(), 15) + ") O: " + Open + ", H: " + High + ", L: " + Low + ", C: " + Close; // -- Plot basic candle chart PlotOHLC(Open, High, Low, Close, "BIdx = " + BarIndex() + "\n" + "O = " + O + "\n"+"H = "+ H + "\n"+"L = " + L + "\n"+"C ", colorBlack, styleCandle); GraphXSpace=7; // -- 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, shapeDownArrow, shapeNone), colorRed, 0, High, Offset=-15); PlotShapes( IIf(aLPivs==1, shapeUpArrow , shapeNone), colorGreen, 0, Low, Offset=-15);