Package org.apache.commons.math3.exception

Examples of org.apache.commons.math3.exception.ZeroException

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    protected AbstractSimplex(final double[] steps) {
        if (steps == null) {
            throw new NullArgumentException();
        }
        if (steps.length == 0) {
            throw new ZeroException();
        }
        dimension = steps.length;

        // Only the relative position of the n final vertices with respect
        // to the first one are stored.
        startConfiguration = new double[dimension][dimension];
        for (int i = 0; i < dimension; i++) {
            final double[] vertexI = startConfiguration[i];
            for (int j = 0; j < i + 1; j++) {
                if (steps[j] == 0) {
                    throw new ZeroException(LocalizedFormats.EQUAL_VERTICES_IN_SIMPLEX);
                }
                System.arraycopy(steps, 0, vertexI, 0, j + 1);
            }
        }
    }
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    protected AbstractSimplex(final double[] steps) {
        if (steps == null) {
            throw new NullArgumentException();
        }
        if (steps.length == 0) {
            throw new ZeroException();
        }
        dimension = steps.length;

        // Only the relative position of the n final vertices with respect
        // to the first one are stored.
        startConfiguration = new double[dimension][dimension];
        for (int i = 0; i < dimension; i++) {
            final double[] vertexI = startConfiguration[i];
            for (int j = 0; j < i + 1; j++) {
                if (steps[j] == 0) {
                    throw new ZeroException(LocalizedFormats.EQUAL_VERTICES_IN_SIMPLEX);
                }
                System.arraycopy(steps, 0, vertexI, 0, j + 1);
            }
        }
    }
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            countSum1 += observed1[i];
            countSum2 += observed2[i];
        }
        // Ensure neither sample is uniformly 0
        if (countSum1 == 0 || countSum2 == 0) {
            throw new ZeroException();
        }
        // Compare and compute weight only if different
        unequalCounts = countSum1 != countSum2;
        if (unequalCounts) {
            weight = FastMath.sqrt((double) countSum1 / (double) countSum2);
        }
        // Compute ChiSquare statistic
        double sumSq = 0.0d;
        double dev = 0.0d;
        double obs1 = 0.0d;
        double obs2 = 0.0d;
        for (int i = 0; i < observed1.length; i++) {
            if (observed1[i] == 0 && observed2[i] == 0) {
                throw new ZeroException(LocalizedFormats.OBSERVED_COUNTS_BOTTH_ZERO_FOR_ENTRY, i);
            } else {
                obs1 = observed1[i];
                obs2 = observed2[i];
                if (unequalCounts) { // apply weights
                    dev = obs1/weight - obs2 * weight;
 
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     * @throws ZeroException if {@code n = 0}
     */
    public synchronized void computeRoots(int n) throws ZeroException {

        if (n == 0) {
            throw new ZeroException(
                    LocalizedFormats.CANNOT_COMPUTE_0TH_ROOT_OF_UNITY);
        }

        isCounterClockWise = n > 0;

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            double[] bottom0 = y;
            for (int j = i; j < n; ++j) {
                final double[] bottom1 = bottomDiagonal.get(n - (j + 1));
                final double inv = 1.0 / (x - abscissae.get(n - (j + 1)));
                if (Double.isInfinite(inv)) {
                    throw new ZeroException(LocalizedFormats.DUPLICATED_ABSCISSA_DIVISION_BY_ZERO, x);
                }
                for (int k = 0; k < y.length; ++k) {
                    bottom1[k] = inv * (bottom0[k] - bottom1[k]);
                }
                bottom0 = bottom1;
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        final long[] collSums = new long[observed1.length];
        final long[][] k = new long[2][observed1.length];

        for (int i = 0; i < observed1.length; i++) {
            if (observed1[i] == 0 && observed2[i] == 0) {
                throw new ZeroException(LocalizedFormats.OBSERVED_COUNTS_BOTTH_ZERO_FOR_ENTRY, i);
            } else {
                countSum1 += observed1[i];
                countSum2 += observed2[i];
                collSums[i] = observed1[i] + observed2[i];
                k[0][i] = observed1[i];
                k[1][i] = observed2[i];
            }
        }
        // Ensure neither sample is uniformly 0
        if (countSum1 == 0 || countSum2 == 0) {
            throw new ZeroException();
        }
        final long[] rowSums = {countSum1, countSum2};
        final double sum = (double) countSum1 + (double) countSum2;
        return 2 * sum * (entropy(rowSums) + entropy(collSums) - entropy(k));
    }
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     */
    public BigFraction(BigInteger num, BigInteger den) {
        MathUtils.checkNotNull(num, LocalizedFormats.NUMERATOR);
        MathUtils.checkNotNull(den, LocalizedFormats.DENOMINATOR);
        if (BigInteger.ZERO.equals(den)) {
            throw new ZeroException(LocalizedFormats.ZERO_DENOMINATOR);
        }
        if (BigInteger.ZERO.equals(num)) {
            numerator   = BigInteger.ZERO;
            denominator = BigInteger.ONE;
        } else {
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                final int last = observations.length - 1;
                // Range of the observations, assuming that the
                // observations are sorted.
                final double xRange = observations[last].getX() - observations[0].getX();
                if (xRange == 0) {
                    throw new ZeroException();
                }
                aOmega[1] = 2 * Math.PI / xRange;

                double yMin = Double.POSITIVE_INFINITY;
                double yMax = Double.NEGATIVE_INFINITY;
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                                       int startIdx,
                                       int idxStep,
                                       double y)
            throws OutOfRangeException {
            if (idxStep == 0) {
                throw new ZeroException();
            }
            final WeightedObservedPoint[] twoPoints
                = getInterpolationPointsForY(points, startIdx, idxStep, y);
            final WeightedObservedPoint p1 = twoPoints[0];
            final WeightedObservedPoint p2 = twoPoints[1];
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                                                                   int startIdx,
                                                                   int idxStep,
                                                                   double y)
            throws OutOfRangeException {
            if (idxStep == 0) {
                throw new ZeroException();
            }
            for (int i = startIdx;
                 idxStep < 0 ? i + idxStep >= 0 : i + idxStep < points.length;
                 i += idxStep) {
                final WeightedObservedPoint p1 = points[i];
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Related Classes of org.apache.commons.math3.exception.ZeroException

  • org.apache.commons.math3.analysis.differentiation.DerivativeStructure
  • org.apache.commons.math3.analysis.differentiation.MultivariateDifferentiableVectorFunction
  • org.apache.commons.math3.analysis.function.HarmonicOscillator
  • org.apache.commons.math3.analysis.function.Sin
  • org.apache.commons.math3.analysis.function.Sinc
  • org.apache.commons.math3.analysis.interpolation.FieldHermiteInterpolator
  • org.apache.commons.math3.analysis.interpolation.HermiteInterpolator
  • org.apache.commons.math3.analysis.MultivariateFunction
  • org.apache.commons.math3.analysis.QuinticFunction
  • org.apache.commons.math3.analysis.solvers.BrentSolver
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