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); }