ta-lib-兩隻烏鴉

ta-lib兩隻烏鴉形態識別實現分析。

k線形態需要回溯前面走勢，並判斷當前形態是否滿足一定條件，如果我自己寫可能會存在較多if else。因此今天研究下cdl2Crows的實現學習下。

k線默認配置

從默認配置可以查看作者對一些形態的基本判斷。

private CandleSetting TA_CandleDefaultSettings[] = {
   /*
   * real body is long when it's longer than the average of the 10
   * previous candles' real body
   */
   new CandleSetting(CandleSettingType.BodyLong,
      RangeType.RealBody, 10, 1.0),
   /*
   * real body is very long when it's longer than 3 times the average
   * of the 10 previous candles' real body
   */
   new CandleSetting(CandleSettingType.BodyVeryLong,
      RangeType.RealBody, 10, 3.0),
   /*
   * real body is short when it's shorter than the average of the 10
   * previous candles' real bodies
   */
   new CandleSetting(CandleSettingType.BodyShort,
      RangeType.RealBody, 10, 1.0),
   /*
   * real body is like doji's body when it's shorter than 10% the
   * average of the 10 previous candles' high-low range
   */
   new CandleSetting(CandleSettingType.BodyDoji,
      RangeType.HighLow, 10, 0.1),
   /* shadow is long when it's longer than the real body */
   new CandleSetting(CandleSettingType.ShadowLong,
      RangeType.RealBody, 0, 1.0),
   /* shadow is very long when it's longer than 2 times the real body */
   new CandleSetting(CandleSettingType.ShadowVeryLong,
      RangeType.RealBody, 0, 2.0),
   /*
   * shadow is short when it's shorter than half the average of the 10
   * previous candles' sum of shadows
   */
   new CandleSetting(CandleSettingType.ShadowShort,
      RangeType.Shadows, 10, 1.0),
   /*
   * shadow is very short when it's shorter than 10% the average of
   * the 10 previous candles' high-low range
   */
   new CandleSetting(CandleSettingType.ShadowVeryShort,
      RangeType.HighLow, 10, 0.1),
   /* when measuring distance between parts of candles or width of gaps */
   /*
   * "near" means "<= 20% of the average of the 5 previous candles'
   * high-low range"
   */
   new CandleSetting(CandleSettingType.Near,
      RangeType.HighLow, 5, 0.2),
   /* when measuring distance between parts of candles or width of gaps */
   /*
   * "far" means ">= 60% of the average of the 5 previous candles'
   * high-low range"
   */
   new CandleSetting(CandleSettingType.Far,
      RangeType.HighLow, 5, 0.6),
   /* when measuring distance between parts of candles or width of gaps */
   /*
   * "equal" means "<= 5% of the average of the 5 previous candles'
   * high-low range"
   */
   new CandleSetting(CandleSettingType.Equal,
      RangeType.HighLow, 5, 0.05) };

代碼

三日K線模式，第一天長陽，第二天高開收陰，第三天再次高開繼續收陰，收盤比前一日收盤價低，預示股價下跌。