/// <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="N">入参</param>
/// <param name="M1">入参</param>
/// <param name="M2">入参</param>
public static void CalcOneStock(List <KDJHistory> lstRet, int newIndex, int N, int M1, int M2)
{
if (lstRet == null || lstRet.Count == 0)
{
return;
}
KDJHistory pre;
if (newIndex == 0)//相当于全部重算
{
pre = lstRet[0];
pre.LLV = pre.LOP;
pre.HHV = pre.HIP;
pre.RSV = (pre.CP - pre.LLV) / (pre.HHV - pre.LLV) * 100;
pre.K = 100;
pre.D = 100;
pre.J = 100;
newIndex += 1;
}
for (int i = newIndex; i < lstRet.Count; i++)
{
pre = lstRet[i - 1];
int skip = i - N + 1;
if (skip < 0)
{
skip = 0;
}
int take = N > i ? i + 1 : N;
var lstTemp = lstRet.Skip(skip).Take(take);
KDJHistory cur = lstRet[i];
cur.LLV = lstTemp.Min(m => m.LOP);
cur.HHV = lstTemp.Max(m => m.HIP);
cur.RSV = (cur.CP - cur.LLV) / (cur.HHV - cur.LLV) * 100;
if (double.NaN.Equals(cur.RSV))
{
cur.RSV = pre.RSV;
cur.K = pre.K;
cur.D = pre.D;
cur.J = pre.J;
}
else
{
cur.K = pre.K * (M1 - 1) / M1 + cur.RSV / M1;
cur.D = pre.D * (M2 - 1) / M2 + cur.K / M2;
cur.J = cur.K * 3 - cur.D * 2;
}
}
CalcOneStockBool(lstRet);
}
/// <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 <KDJHistory> lstRet)
{
for (int i = 1; i < lstRet.Count; i++)
{
KDJHistory cur = lstRet[i];
//超卖
cur.Oversold = cur.D < 20;
//超买
cur.Overbought = cur.D > 80;
if (i == 1)
{
continue;
}
KDJHistory pre1 = lstRet[i - 1];
KDJHistory pre2 = lstRet[i - 2];
if (pre1.K == pre1.D)
{
//金叉
cur.GoldX = (pre2.K <pre2.D && cur.K> cur.D);
//死叉
cur.BlackX = (pre2.K > pre2.D && cur.K < cur.D);
//低位金叉
cur.LowGoldX = (pre1.K <20 && pre1.D <20 && cur.K> pre1.K && cur.D> pre1.D && pre2.K <pre2.D && cur.K> cur.D);
}
else
{
//金叉
cur.GoldX = (pre1.K <pre1.D && cur.K> cur.D);
//死叉
cur.BlackX = (pre1.K > pre1.D && cur.K < cur.D);
//低位金叉
cur.LowGoldX = (pre1.K <20 && pre1.D <20 && cur.K> pre1.K && cur.D> pre1.D && pre1.K <pre1.D && cur.K> cur.D);
}
if (i <= 3)
{
continue;
}
KDJHistory pre3 = lstRet[i - 3];
KDJHistory pre4 = lstRet[i - 4];
//顶背离
cur.TopDepart = (cur.CP > pre1.CP && pre1.CP > pre2.CP && pre2.CP > pre3.CP && pre3.CP > pre4.CP && cur.D < pre1.D && cur.D < pre2.D && cur.D < pre3.D && cur.D < pre4.D);
//底背离
cur.DownDepart = (cur.CP <pre1.CP && pre1.CP <pre2.CP && pre2.CP <pre3.CP && pre3.CP <pre4.CP && cur.D> pre1.D && cur.D> pre2.D && cur.D> pre3.D && cur.D> pre4.D);
}
}
