public static List <decimal?> Ema(this IEnumerable <decimal?> candles, int period)
{
IIndicatorOptions options = new EmaOptions(period, CandleVariableCode.CLOSE);
Ema ema = new Ema();
return(ema.Get(candles, options));
}
public override dynamic Get(IEnumerable <decimal?> source, IIndicatorOptions options = null)
{
EmaOptions config = options != null ? (EmaOptions)options.Options : new EmaOptions(30, CandleVariableCode.CLOSE);
double[] emaValues = new double[source.Count()];
List <double?> outValues = new List <double?>();
double[] sourceFix = source.Select(x => x.HasValue ? Convert.ToDouble(x) : 0).ToArray();
TicTacTec.TA.Library.Core.RetCode ema = TicTacTec.TA.Library.Core.Ema(0, source.Count() - 1, sourceFix, config.Period, out int outBegIdx, out int outNbElement, emaValues);
if (ema == TicTacTec.TA.Library.Core.RetCode.Success)
{
return(FixIndicatorOrdering(emaValues.ToList(), outBegIdx, outNbElement));
}
throw new Exception("Could not calculate EMA!");
}
public override dynamic Get(IEnumerable <ICandle> source, IIndicatorOptions options = null)
{
EmaOptions config = options != null ? (EmaOptions)options.Options : new EmaOptions(30, CandleVariableCode.CLOSE);
IEnumerable <decimal?> values;
if (config.Type == (ICandleVariableCode)CandleVariableCode.OPEN)
{
values = source.Select(x => (decimal?)x.Open);
}
else if (config.Type == (ICandleVariableCode)CandleVariableCode.LOW)
{
values = source.Select(x => (decimal?)x.Low);
}
else if (config.Type == (ICandleVariableCode)CandleVariableCode.HIGH)
{
values = source.Select(x => (decimal?)x.High);
}
else
{
values = source.Select(x => (decimal?)x.Close);
}
return(Get(values, options));
}