/// <summary>
/// Calculate the harmonic mean value of array data. Supported data type: double/float/int.
/// </summary>
/// <param name="data">The array data to calculate statistic value.</param>
/// <typeparam name="TDataType">Supported data type: double/float/int.</typeparam>
/// <returns>The harmonic mean value of array data.</returns>
/// <exception cref="NotSupportedException">Supported data type: double/float/int.</exception>
public static double HarmonicMean <TDataType>(TDataType[] data)
{
double harmonicMean = double.NaN;
if (ReferenceEquals(typeof(TDataType), typeof(double)))
{
double[] doubleData = data as double[];
harmonicMean = ArrayStatistics.HarmonicMean(doubleData);
}
else if (ReferenceEquals(typeof(TDataType), typeof(float)))
{
float[] floatData = data as float[];
harmonicMean = ArrayStatistics.HarmonicMean(floatData);
}
else if (ReferenceEquals(typeof(TDataType), typeof(int)))
{
int[] intData = data as int[];
harmonicMean = ArrayStatistics.HarmonicMean(intData);
}
else
{
throw new NotSupportedException("Unsupported data type.");
}
return(harmonicMean);
}