| 1 | /** |
| 2 | * |
| 3 | */ |
| 4 | package de.uka.ipd.sdq.probfunction.math.apache.impl; |
| 5 | |
| 6 | |
| 7 | import de.uka.ipd.sdq.probfunction.math.IBinomialDistribution; |
| 8 | import de.uka.ipd.sdq.probfunction.math.IChiSquareDistribution; |
| 9 | import de.uka.ipd.sdq.probfunction.math.IPDFFactory; |
| 10 | import de.uka.ipd.sdq.probfunction.math.IExponentialDistribution; |
| 11 | import de.uka.ipd.sdq.probfunction.math.IGammaDistribution; |
| 12 | import de.uka.ipd.sdq.probfunction.math.ILognormalDistribution; |
| 13 | import de.uka.ipd.sdq.probfunction.math.INormalDistribution; |
| 14 | import de.uka.ipd.sdq.probfunction.math.IPoissonDistribution; |
| 15 | import de.uka.ipd.sdq.probfunction.math.IStudentTDistribution; |
| 16 | import de.uka.ipd.sdq.probfunction.math.IUniformDistribution; |
| 17 | import de.uka.ipd.sdq.probfunction.math.IUniformIntDistribution; |
| 18 | |
| 19 | /** |
| 20 | * @author joerg |
| 21 | * |
| 22 | */ |
| 23 | public class PDFFactory implements IPDFFactory{ |
| 24 | |
| 25 | /* (non-Javadoc) |
| 26 | * @see de.uka.ipd.sdq.probfunction.math.impl.IContinousPDFFactory#createExponentialDistribution(double) |
| 27 | */ |
| 28 | @Override |
| 29 | public IExponentialDistribution createExponentialDistribution(double rate) { |
| 30 | return new ExponentialDistribution(rate); |
| 31 | } |
| 32 | |
| 33 | /* (non-Javadoc) |
| 34 | * @see de.uka.ipd.sdq.probfunction.math.impl.IContinousPDFFactory#createGammaDistribution(double, double) |
| 35 | */ |
| 36 | @Override |
| 37 | public IGammaDistribution createGammaDistribution(double alpha, double theta) { |
| 38 | return new GammaDistribution(alpha, theta); |
| 39 | } |
| 40 | |
| 41 | /* (non-Javadoc) |
| 42 | * @see de.uka.ipd.sdq.probfunction.math.impl.IContinousPDFFactory#createLognormalDistribution(double, double) |
| 43 | */ |
| 44 | @Override |
| 45 | public ILognormalDistribution createLognormalDistribution(double mu, double sigma) { |
| 46 | return new LognormalDistribution(mu, sigma); |
| 47 | } |
| 48 | |
| 49 | /* (non-Javadoc) |
| 50 | * @see de.uka.ipd.sdq.probfunction.math.impl.IContinousPDFFactory#createNormalDistribution(double, double) |
| 51 | */ |
| 52 | @Override |
| 53 | public INormalDistribution createNormalDistribution(double mu, double sigma) { |
| 54 | return new NormalDistribution(mu, sigma); |
| 55 | } |
| 56 | |
| 57 | /* (non-Javadoc) |
| 58 | * @see de.uka.ipd.sdq.probfunction.math.impl.IContinousPDFFactory#createNormalDistribution(double, double) |
| 59 | */ |
| 60 | @Override |
| 61 | public IGammaDistribution createGammaDistributionFromMoments(double mean, |
| 62 | double coeffVar) { |
| 63 | |
| 64 | return new GammaDistributionFromMoments(mean, coeffVar); |
| 65 | } |
| 66 | |
| 67 | /* (non-Javadoc) |
| 68 | * @see de.uka.ipd.sdq.probfunction.math.impl.IContinousPDFFactory#createNormalDistribution(double, double) |
| 69 | */ |
| 70 | @Override |
| 71 | public ILognormalDistribution createLognormalDistributionFromMoments( |
| 72 | double mean, double variance) { |
| 73 | |
| 74 | return new LognormalDistributionFromMoments(mean, variance); |
| 75 | } |
| 76 | |
| 77 | @Override |
| 78 | public IBinomialDistribution createBinomialDistribution(int trials, |
| 79 | double probability) { |
| 80 | |
| 81 | return new BinomialDistribution(trials, probability); |
| 82 | } |
| 83 | |
| 84 | @Override |
| 85 | public IPoissonDistribution createPoissonDistribution(double mean) { |
| 86 | |
| 87 | return new PoissonDistribution(mean); |
| 88 | } |
| 89 | |
| 90 | @Override |
| 91 | public IUniformIntDistribution createUniformIntDistribution(int a, int b) { |
| 92 | |
| 93 | return new UniformIntDistribution(a, b); |
| 94 | } |
| 95 | |
| 96 | @Override |
| 97 | public IUniformDistribution createUniformDistribution(double a, double b) { |
| 98 | |
| 99 | return new UniformDistribution(a, b); |
| 100 | } |
| 101 | |
| 102 | @Override |
| 103 | public IChiSquareDistribution createChiSquareDistribution(int degreesOfFreedom) { |
| 104 | return new ChiSquareDistribution(degreesOfFreedom); |
| 105 | } |
| 106 | |
| 107 | @Override |
| 108 | public IStudentTDistribution createStudentTDistribution(int degreesOfFreedom) { |
| 109 | return new StudentTDistribution(degreesOfFreedom); |
| 110 | } |
| 111 | |
| 112 | } |