/// <summary>
/// Initializes a new instance of the <see cref="RunningStats{TTKernel}"/> class.
/// </summary>
public RunningStats()
{
if (!SupportTypes.TryGetValue(typeof(TKernel), out var type))
{
throw new NotSupportedException($"{typeof(TKernel).Name} does not support");
}
this._RunningStatsType = type.ToRunningStatsType();
this.NativePtr = NativeMethods.running_stats_new(this._RunningStatsType);
if (this.NativePtr == IntPtr.Zero)
{
throw new ArgumentException($"{type} is not supported.");
}
this._Type = type;
switch (this._Type)
{
case RunningStatsType.Float:
this._Imp = new RunningStatsFloatImp(this, this._RunningStatsType) as RunningStatsImp <TKernel>;
break;
case RunningStatsType.Double:
this._Imp = new RunningStatsDoubleImp(this, this._RunningStatsType) as RunningStatsImp <TKernel>;
break;
}
}
internal static NativeMethods.RunningStatsType ToRunningStatsType(this RunningStatsType type)
{
switch (type)
{
case RunningStatsType.Float:
return(NativeMethods.RunningStatsType.Float);
case RunningStatsType.Double:
return(NativeMethods.RunningStatsType.Double);
default:
throw new ArgumentOutOfRangeException(nameof(type), type, null);
}
}
public static extern IntPtr running_stats_operator_add(RunningStatsType type, IntPtr left, IntPtr right);
public static extern void running_stats_delete(RunningStatsType type, IntPtr stats);
public static extern ErrorType running_stats_variance(RunningStatsType type, IntPtr stats, out double variance);
public static extern ErrorType running_stats_stddev(RunningStatsType type, IntPtr stats, out double stddev);
public static extern ErrorType running_stats_skewness(RunningStatsType type, IntPtr stats, out double skewness);
public static extern ErrorType running_stats_scale(RunningStatsType type, IntPtr stats, ref double scale, out double ret);
public static extern ErrorType running_stats_scale(RunningStatsType type, IntPtr stats, ref float scale, out float ret);
public static extern ErrorType running_stats_min(RunningStatsType type, IntPtr stats, out double min);
public static extern ErrorType running_stats_mean(RunningStatsType type, IntPtr stats, out float mean);
public static extern ErrorType running_stats_ex_kurtosis(RunningStatsType type, IntPtr stats, out double ex_kurtosis);
public static extern ErrorType running_stats_current_n(RunningStatsType type, IntPtr stats, out double n);
public static extern ErrorType running_stats_clear(RunningStatsType type, IntPtr stats);
public static extern ErrorType running_stats_add(RunningStatsType type, IntPtr stats, ref double val);
public static extern IntPtr running_stats_new(RunningStatsType type);
