/// <summary>
/// 计算一个股票的 MACD金叉、MACD死叉、MACD顶背离、MACD底背离
/// </summary>
/// <param name="lstRet"></param>
private static void CalcOneStockBool(List <MACDHistory> lstRet)
{
for (int i = 3; i < lstRet.Count; i++)
{
MACDHistory cur = lstRet[i];
MACDHistory pre1 = lstRet[i - 1];
MACDHistory pre2 = lstRet[i - 2];
if (pre1.DIF == pre1.DEA)
{
cur.GoldX = (pre2.DIF <pre2.DEA && cur.DIF> cur.DEA);
cur.BlackX = (pre2.DIF > pre2.DEA && cur.DIF < cur.DEA);
}
else
{
cur.GoldX = (pre1.DIF <pre1.DEA && cur.DIF> cur.DEA);
cur.BlackX = (pre1.DIF > pre1.DEA && cur.DIF < cur.DEA);
}
if (i == 3)
{
continue;
}
MACDHistory pre3 = lstRet[i - 3];
MACDHistory pre4 = lstRet[i - 4];
cur.TopDepart = (pre4.CP < pre3.CP && pre3.CP < pre2.CP && pre2.CP < pre1.CP && pre1.CP < cur.CP &&
cur.MACD < pre1.MACD && cur.MACD < pre2.MACD && cur.MACD < pre3.MACD && cur.MACD < pre4.MACD);
cur.DownDepart = (cur.CP <pre1.CP && pre1.CP <pre2.CP && pre2.CP <pre3.CP && pre3.CP <pre4.CP &&
cur.MACD> pre1.MACD && cur.MACD> pre2.MACD && cur.MACD> pre3.MACD && cur.MACD> pre4.MACD);
}
}
/// <summary>
/// 计算一个股票的MACD
/// </summary>
/// <param name="lstRet">计算数据</param>
/// <param name="newIndex">需要计算记录的索引号</param>
/// <param name="shortParam">入参</param>
/// <param name="longParam">入参</param>
/// <param name="midParam">入参</param>
public static void CalcOneStock(List <MACDHistory> lstRet, int newIndex, int shortParam, int longParam, int midParam)
{
if (lstRet == null || lstRet.Count == 0)
{
return;
}
MACDHistory pre;
if (newIndex == 0)//相当于全部重算
{
pre = lstRet[0];
pre.EMAshort = pre.CP;
pre.EMAlong = pre.CP;
newIndex += 1;
}
for (int i = newIndex; i < lstRet.Count; i++)
{
pre = lstRet[i - 1];
MACDHistory cur = lstRet[i];
CalcOneStockValue(cur, pre, shortParam, longParam, midParam);
}
CalcOneStockBool(lstRet);
}
/// <summary>
/// 计算一个股票的 EMA（short）、EMA（long）、DIF、DEA、MACD
/// </summary>
/// <param name="raw">当天计算结果</param>
/// <param name="pre">前一天计算结果</param>
/// <param name="shortParam">入参</param>
/// <param name="longParam">入参</param>
/// <param name="midParam">入参</param>
private static void CalcOneStockValue(MACDHistory cur, MACDHistory pre, int shortParam = 12, int longParam = 26, int midParam = 9)
{
cur.EMAshort = pre.EMAshort * (shortParam - 1) / (shortParam + 1) + cur.CP * 2 / (shortParam + 1);
cur.EMAlong = pre.EMAlong * (longParam - 1) / (longParam + 1) + cur.CP * 2 / (longParam + 1);
cur.DIF = cur.EMAshort - cur.EMAlong;
cur.DEA = pre.DEA * (midParam - 1) / (midParam + 1) + cur.DIF * 2 / (midParam + 1);
cur.MACD = 2 * (cur.DIF - cur.DEA);
}
