public virtual bool TurnOver(DataRowCollection rows, int index) { if (!AnalysisCommon.CheckTrendPeriod(index, rows.Count, TrendPeriod)) { return(false); } AnalysisCommon.TrendDirection before = AnalysisCommon.TrendDirection.None; AnalysisCommon.TrendDirection after = AnalysisCommon.TrendDirection.None; try { before = AnalysisCommon.CheckBeforeTrendDirection(rows, index, TrendPeriod); after = AnalysisCommon.CheckAfterTrendDirection(rows, index, TrendPeriod); } catch (Exception ex) { if (ex is SMANULLException) { return(false); } } if ((before == AnalysisCommon.TrendDirection.Down && after == AnalysisCommon.TrendDirection.Up) || (before == AnalysisCommon.TrendDirection.Up && after == AnalysisCommon.TrendDirection.Down)) { return(true); } return(false); }
public virtual bool BeforeHasTrend(DataRowCollection rows, int index) { if (!AnalysisCommon.CheckTrendPeriod(index, rows.Count, TrendPeriod)) { return(false); } var trendDirect = AnalysisCommon.CheckBeforeTrendDirection(rows, index, TrendPeriod); if (trendDirect == AnalysisCommon.TrendDirection.None) { return(false); } return(true); }
public override bool Qualified(DataRowCollection rows, int index, StockData currentPrice, StockData beforePrice, StockData afterPrice) { if (currentPrice == null || beforePrice == null) { return(false); } if (!BeforeHasTrend(rows, index)) { return(false); } //Before trend must be Down if (AnalysisCommon.CheckBeforeTrendDirection(rows, index, _trendPeriod) != AnalysisCommon.TrendDirection.Down) { return(false); } //Previous day must be down if (beforePrice.open < beforePrice.close) { return(false); } //Current day must be up if (currentPrice.open > currentPrice.close) { return(false); } //Current Open must be less than previous close if (currentPrice.open > beforePrice.close) { return(false); } //Current close must be greater than previous close if (currentPrice.close < beforePrice.close) { return(false); } //Shadow line must be very short for previous if ((beforePrice.high - beforePrice.close) > (beforePrice.high - beforePrice.low) * multiplier) { return(false); } if ((beforePrice.open - beforePrice.low) > (beforePrice.high - beforePrice.low) * multiplier) { return(false); } //Shadow line must be very short for current if ((currentPrice.high - currentPrice.open) > (currentPrice.high - currentPrice.low) * multiplier) { return(false); } if ((currentPrice.close - currentPrice.low) > (currentPrice.high - currentPrice.low) * multiplier) { return(false); } //current close must be in body of previous bar for more than 60% if ((currentPrice.close - beforePrice.close) < (beforePrice.open - beforePrice.close) * multiplier2) { return(false); } return(true); }