SetDistributionParameters(
int alpha,
int beta
)
{
if (!IsValidParameterSet(alpha, beta))
{
throw new ArgumentException(Properties.Resources.ArgumentParameterSetInvalid);
}
_alpha = alpha;
_beta = beta;
_chiSquaredAlpha.SetDistributionParameters(alpha);
_chiSquaredBeta.SetDistributionParameters(beta);
double alphaHalf = 0.5 * alpha;
double betaHalf = 0.5 * beta;
_alphabeta = (double)beta / (double)alpha;
_pdfScaleLn =
alphaHalf * Math.Log(alpha)
+ betaHalf * Math.Log(beta)
- Fn.BetaLn(alphaHalf, betaHalf);
_pdfExponent1 = alphaHalf - 1.0;
_pdfExponent2 = -alphaHalf - betaHalf;
}
public void SetDistributionParameters(double alpha, double beta)
{
if (!IsValidParameterSet(alpha, beta))
{
throw new ArgumentOutOfRangeException();
}
_alpha = alpha;
_beta = beta;
_gammaAlpha.SetDistributionParameters(alpha, 1.0);
_gammaBeta.SetDistributionParameters(beta, 1.0);
_lnbetaAlphaBeta = Fn.BetaLn(alpha, beta);
}
SetDistributionParameters(
double alpha,
double beta)
{
if (!IsValidParameterSet(alpha, beta))
{
throw new ArgumentException(Properties.LocalStrings.ArgumentParameterSetInvalid);
}
_alpha = alpha;
_beta = beta;
_gammaAlpha.SetDistributionParameters(alpha, 1.0);
_gammaBeta.SetDistributionParameters(beta, 1.0);
_lnbetaAlphaBeta = Fn.BetaLn(alpha, beta);
}
