/// <summary>
/// 计算一个股票的 DMI金叉、DMI死叉
/// </summary>
/// <param name="lstRet"></param>
private static void CalcOneStockBool(List <DMIHistory> lstRet)
{
for (int i = 2; i < lstRet.Count; i++)
{
DMIHistory cur18 = lstRet[i];
DMIHistory pre17 = lstRet[i - 1];
DMIHistory pre16 = lstRet[i - 2];
if (pre17.PDI == pre17.MDI)
{
cur18.GoldX = (pre16.PDI <pre16.MDI && cur18.PDI> cur18.MDI);
cur18.BlackX = (pre16.PDI > pre16.MDI && cur18.PDI < cur18.MDI);
}
else
{
cur18.GoldX = (pre17.PDI <pre17.MDI && cur18.PDI> cur18.MDI);
cur18.BlackX = (pre17.PDI > pre17.MDI && cur18.PDI < cur18.MDI);
}
}
}
/// <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="M">入参</param>
public static void CalcOneStock(List <DMIHistory> lstRet, int newIndex, int N = 14, int M = 6)
{
if (lstRet == null || lstRet.Count == 0)
{
return;
}
DMIHistory pre;
if (newIndex == 0)//相当于全部重算
{
pre = lstRet[0];
newIndex += 1;
}
for (int i = newIndex; i < lstRet.Count; i++)
{
pre = lstRet[i - 1];
DMIHistory cur = lstRet[i];
cur.TR1 = Math.Max(Math.Max(cur.HIP - cur.LOP, Math.Abs(cur.HIP - pre.CP)), Math.Abs(cur.LOP - pre.CP));
cur.HD = cur.HIP - pre.HIP;
cur.LD = pre.LOP - cur.LOP;
if (i < N)
{
continue;
}
int skip = i - N + 1;
if (skip < 0)
{
skip = 0;
}
int take = N > i ? i + 1 : N;
var lstTemp = lstRet.Skip(skip).Take(take);
cur.TR = lstTemp.Sum(m => m.TR1);
cur.DMP = lstTemp.Where(m => m.HD > 0 && m.HD > m.LD).Sum(m => m.HD);
cur.DMM = lstTemp.Where(m => m.LD > 0 && m.LD > m.HD).Sum(m => m.LD);
cur.PDI = cur.DMP * 100 / cur.TR;
cur.MDI = cur.DMM * 100 / cur.TR;
//消除非数值问题(把一般是除数是0引起的，把其值设置成其前一天的值)
if (double.NaN.Equals(cur.PDI))
{
cur.PDI = pre.PDI;
}
if (double.NaN.Equals(cur.MDI))
{
cur.MDI = pre.MDI;
}
int take2 = M;
if (i < N + take2 - 1)
{
continue;
}
if (cur.PDI == null || cur.MDI == null)
{
continue;
}
int skip2 = i - take2 + 1;
var lstTemp2 = lstRet.Skip(skip2).Take(take2);
cur.ADX = lstTemp2.Average(m => Math.Abs(m.MDI - m.PDI) / (m.MDI + m.PDI) * 100);
//消除非数值问题(把一般是除数是0引起的，把其值设置成其前一天的值)
if (double.NaN.Equals(cur.ADX))
{
cur.ADX = pre.ADX;
}
int take3 = M;
if (i < N + take2 + take3 - 2)
{
continue;
}
int skip3 = i - take3 + 1;
DMIHistory preSkip3 = lstRet[skip3];
cur.ADXR = (preSkip3.ADX + cur.ADX) / 2;
//消除非数值问题(把一般是除数是0引起的，把其值设置成其前一天的值)
if (double.NaN.Equals(cur.ADXR))
{
cur.ADXR = pre.ADXR;
}
}
CalcOneStockBool(lstRet);
}
