/// <summary>
/// Variance for [X/Y].
/// </summary>
public static double DivVariance(Statistics x, Statistics y)
{
var yInvert = y.Invert();
if (yInvert == null)
{
throw new DivideByZeroException();
}
return(MulVariance(x, yInvert));
}
/// <summary>
/// Mean for [X/Y].
/// </summary>
public static double DivMean([CanBeNull] Statistics x, [CanBeNull] Statistics y)
{
if (x == null || y == null)
{
return(double.NaN);
}
var yInvert = y.Invert();
if (yInvert == null)
{
throw new DivideByZeroException();
}
return(MulMean(x, yInvert));
}
/// <summary>
/// Variance for [X/Y].
/// </summary>
public static double DivVariance(Statistics x, Statistics y)
{
var yInvert = y.Invert();
if (yInvert == null)
throw new DivideByZeroException();
return MulVariance(x, yInvert);
}