/// <summary>
/// Check if the point has enough data for checking before and after trend
/// </summary>
/// <param name="index"></param>
/// <param name="count"></param>
/// <returns></returns>
public static bool CheckTrendPeriod(int index, int count, TrendPeriod trendPeriod)
{
int nTrendPeriod = GetTrendPeriod(trendPeriod);
//unable to verify
if (index - nTrendPeriod < 0 || index + nTrendPeriod > count)
{
return(false);
}
return(true);
}
private static int GetTrendPeriod(TrendPeriod trendPeriod)
{
int nTrendPeriod = 0;
switch (trendPeriod)
{
case TrendPeriod.Short:
nTrendPeriod = TrendShortPeriod;
break;
case TrendPeriod.Medium:
nTrendPeriod = TrendMediumPeriod;
break;
case TrendPeriod.Long:
nTrendPeriod = TrendLongPeriod;
break;
default:
break;
}
return(nTrendPeriod);
}
public static TrendDirection CheckAfterTrendDirection(DataRowCollection rows, int index, TrendPeriod trendPeriod)
{
int nTrendPeriod = GetTrendPeriod(trendPeriod);
return(CheckTrendDirection(rows, index + 1, index + nTrendPeriod + 1));
}
public static TrendDirection CheckBeforeTrendDirection(DataRowCollection rows, int index, TrendPeriod trendPeriod)
{
int nTrendPeriod = GetTrendPeriod(trendPeriod);
return(CheckTrendDirection(rows, index - nTrendPeriod, index));
}
