Examples of FDistribution

@version $Revision: 545192 $ $Date: 2007-06-07 07:35:04 -0700 (Thu, 07 Jun 2007) $
  • org.apache.commons.math3.distribution.FDistribution
    pedia.org/wiki/F-distribution">F-distribution (Wikipedia) @see F-distribution (MathWorld)

    • Examples of org.apache.commons.math3.distribution.FDistribution

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         * @return random value sampled from the F(numeratorDf, denominatorDf) distribution
         * @throws NotStrictlyPositiveException if
         * {@code numeratorDf <= 0} or {@code denominatorDf <= 0}.
         */
        public double nextF(double numeratorDf, double denominatorDf) throws NotStrictlyPositiveException {
            return new FDistribution(getRan(), numeratorDf, denominatorDf,
                    FDistribution.DEFAULT_INVERSE_ABSOLUTE_ACCURACY).sample();
        }
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    Examples of org.apache.commons.math3.distribution.FDistribution

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            TestUtils.assertChiSquareAccept(expected, counts, 0.001);
        }

        @Test
        public void testNextF() {
            double[] quartiles = TestUtils.getDistributionQuartiles(new FDistribution(12, 5));
            long[] counts = new long[4];
            randomData.reSeed(1000);
            for (int i = 0; i < 1000; i++) {
                double value = randomData.nextF(12, 5);
                TestUtils.updateCounts(value, counts, quartiles);
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    Examples of org.apache.commons.math3.distribution.FDistribution

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            TestUtils.assertChiSquareAccept(expected, counts, 0.001);
        }

        @Test
        public void testNextF() throws Exception {
            double[] quartiles = TestUtils.getDistributionQuartiles(new FDistribution(12, 5));
            long[] counts = new long[4];
            randomData.reSeed(1000);
            for (int i = 0; i < 1000; i++) {
                double value = randomData.nextF(12, 5);
                TestUtils.updateCounts(value, counts, quartiles);
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