/// <summary>
/// Calculate Triple Exponential Moving Average, as described here:
/// <see href="https://en.wikipedia.org/wiki/Triple_exponential_moving_average"/>
/// </summary>
/// <param name="series">input time series</param>
/// <param name="n">averaging length</param>
/// <param name="parentId">caller cache id, optional</param>
/// <param name="memberName">caller's member name, optional</param>
/// <param name="lineNumber">caller line number, optional</param>
/// <returns>TEMA time series</returns>
public static ITimeSeries <double> TEMA(this ITimeSeries <double> series, int n,
CacheId parentId = null, [CallerMemberName] string memberName = "", [CallerLineNumber] int lineNumber = 0)
{
var cacheId = new CacheId(parentId, memberName, lineNumber,
series.GetHashCode(), n);
return(series
.Multiply(3.0, cacheId)
.EMA(n, cacheId)
.Subtract(
series
.Multiply(3.0, cacheId)
.EMA(n, cacheId)
.EMA(n, cacheId),
cacheId)
.Add(
series
.EMA(n, cacheId)
.EMA(n, cacheId)
.EMA(n, cacheId),
cacheId));
}
