public InverseGammaDistribution ( [ shape, [ scale ) : System | ||
shape | [ | The shape parameter α (alpha). |
scale | [ | The scale parameter β (beta). |
return | System |
public InverseGammaDistribution([Positive] double shape, [Positive] double scale)
{
if (shape <= 0)
throw new ArgumentOutOfRangeException("shape");
if (scale <= 0)
throw new ArgumentOutOfRangeException("scale");
this.a = shape;
this.b = scale;
this.constant = Math.Pow(b, a) / Gamma.Function(a);
}