protected override void InitExecuteContext()
{
if (IsSimple)
{
return;
}
m_tema1 = new TEMA {
Context = Context, Period = Period
};
m_tema2 = new TEMA {
Context = Context, Period = Period
};
}
public static IList <double> Calc(IList <double> source, int period, IMemoryContext context = null)
{
if (source == null)
{
throw new ArgumentNullException(nameof(source));
}
if (period <= 0)
{
throw new ArgumentOutOfRangeException(nameof(period));
}
var result = context?.GetArray <double>(source.Count) ?? new double[source.Count];
if (result.Length > 0)
{
if (period == 1 || result.Length == 1)
{
source.CopyTo(result, 0);
}
else
{
var tema1 = TEMA.Calc(source, period, context);
var tema2 = TEMA.Calc(tema1, period, context);
for (var i = 0; i < source.Count; i++)
{
result[i] = 2 * tema1[i] - tema2[i];
}
context?.ReleaseArray((Array)tema1);
context?.ReleaseArray((Array)tema2);
}
}
return(result);
}
protected override void ClearExecuteContext()
{
m_tema1 = null;
m_tema2 = null;
}