Package org.apache.commons.math3.analysis.function

Examples of org.apache.commons.math3.analysis.function.Log

496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
        v_mapExpm1ToSelf.mapToSelf(new Expm1());
        double[] result_mapExpm1ToSelf = {1.718281828459045d,6.38905609893065d, 19.085536923187668d};
        assertClose("compare vectors" ,result_mapExpm1ToSelf,v_mapExpm1ToSelf.toArray(),normTolerance);

        //octave =  log(v1)
        RealVector v_mapLog = v1.map(new Log());
        double[] result_mapLog = {0d,6.931471805599453e-01d, 1.098612288668110e+00d};
        assertClose("compare vectors" ,result_mapLog,v_mapLog.toArray(),normTolerance);

        //octave =  log(v1)
        RealVector v_mapLogToSelf = v1.copy();
        v_mapLogToSelf.mapToSelf(new Log());
        double[] result_mapLogToSelf = {0d,6.931471805599453e-01d, 1.098612288668110e+00d};
        assertClose("compare vectors" ,result_mapLogToSelf,v_mapLogToSelf.toArray(),normTolerance);

        //octave =  log10(v1)
        RealVector v_mapLog10 = v1.map(new Log10());
View Full Code Here
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
        v_mapExpm1ToSelf.mapToSelf(new Expm1());
        double[] result_mapExpm1ToSelf = {1.718281828459045d,6.38905609893065d, 19.085536923187668d};
        assertClose("compare vectors" ,result_mapExpm1ToSelf,v_mapExpm1ToSelf.toArray(),normTolerance);

        //octave =  log(v1)
        RealVector v_mapLog = v1.map(new Log());
        double[] result_mapLog = {0d,6.931471805599453e-01d, 1.098612288668110e+00d};
        assertClose("compare vectors" ,result_mapLog,v_mapLog.toArray(),normTolerance);

        //octave =  log(v1)
        RealVector v_mapLogToSelf = v1.copy();
        v_mapLogToSelf.mapToSelf(new Log());
        double[] result_mapLogToSelf = {0d,6.931471805599453e-01d, 1.098612288668110e+00d};
        assertClose("compare vectors" ,result_mapLogToSelf,v_mapLogToSelf.toArray(),normTolerance);

        //octave =  log10(v1)
        RealVector v_mapLog10 = v1.map(new Log10());
View Full Code Here
82
83
84
85
86
87
88
89
90
91
        Assert.assertEquals(0.25, FunctionUtils.compose(inv, m, id).derivative().value(2), EPS);

        DifferentiableUnivariateFunction pow = new Power(2);
        Assert.assertEquals(108, FunctionUtils.compose(pow, pow).derivative().value(3), EPS);

        DifferentiableUnivariateFunction log = new Log();
        double a = 9876.54321;
        Assert.assertEquals(pow.derivative().value(a) / pow.value(a),
                            FunctionUtils.compose(log, pow).derivative().value(a), EPS);
    }
View Full Code Here
275
276
277
278
279
280
281
282
283
284
285
                        final double baseRoot = forward ?
                                                solver.solve(maxIterationCount, f, ta, tb) :
                                                solver.solve(maxIterationCount, f, tb, ta);
                        final int remainingEval = maxIterationCount - solver.getEvaluations();
                        BracketedUnivariateSolver<UnivariateFunction> bracketing =
                                new PegasusSolver(solver.getRelativeAccuracy(), solver.getAbsoluteAccuracy());
                        root = forward ?
                               UnivariateSolverUtils.forceSide(remainingEval, f, bracketing,
                                                                   baseRoot, ta, tb, AllowedSolution.RIGHT_SIDE) :
                               UnivariateSolverUtils.forceSide(remainingEval, f, bracketing,
                                                                   baseRoot, tb, ta, AllowedSolution.LEFT_SIDE);
View Full Code Here
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
                // tests for termination and stringent tolerances
                if (FastMath.abs(actRed) <= TWO_EPS &&
                    preRed <= TWO_EPS &&
                    ratio <= 2.0) {
                    throw new ConvergenceException(LocalizedFormats.TOO_SMALL_COST_RELATIVE_TOLERANCE,
                                                   costRelativeTolerance);
                } else if (delta <= TWO_EPS * xNorm) {
                    throw new ConvergenceException(LocalizedFormats.TOO_SMALL_PARAMETERS_RELATIVE_TOLERANCE,
                                                   parRelativeTolerance);
                } else if (maxCosine <= TWO_EPS) {
                    throw new ConvergenceException(LocalizedFormats.TOO_SMALL_ORTHOGONALITY_TOLERANCE,
                                                   orthoTolerance);
                }
            }
        }
    }
View Full Code Here
883
884
885
886
887
888
889
890
891
892
893
                for (int j = k; j < nR; ++j) {
                    double aki = weightedJacobian[j][permutation[i]];
                    norm2 += aki * aki;
                }
                if (Double.isInfinite(norm2) || Double.isNaN(norm2)) {
                    throw new ConvergenceException(LocalizedFormats.UNABLE_TO_PERFORM_QR_DECOMPOSITION_ON_JACOBIAN,
                                                   nR, nC);
                }
                if (norm2 > ak2) {
                    nextColumn = i;
                    ak2        = norm2;
View Full Code Here
219
220
221
222
223
224
225
226
227
228
229
     * length.
     */
    protected double[] computeResiduals(double[] objectiveValue) {
        final double[] target = getTarget();
        if (objectiveValue.length != target.length) {
            throw new DimensionMismatchException(target.length,
                                                 objectiveValue.length);
        }

        final double[] residuals = new double[target.length];
        for (int i = 0; i < target.length; i++) {
View Full Code Here
223
224
225
226
227
228
229
230
231
232
233
        /** {@inheritDoc} */
        public RealVector solve(final RealVector b) {
            final int m = lTData.length;
            if (b.getDimension() != m) {
                throw new DimensionMismatchException(b.getDimension(), m);
            }

            final double[] x = b.toArray();

            // Solve LY = b
View Full Code Here
254
255
256
257
258
259
260
261
262
263
264
        /** {@inheritDoc} */
        public RealMatrix solve(RealMatrix b) {
            final int m = lTData.length;
            if (b.getRowDimension() != m) {
                throw new DimensionMismatchException(b.getRowDimension(), m);
            }

            final int nColB = b.getColumnDimension();
            final double[][] x = b.getData();

View Full Code Here
153
154
155
156
157
158
159
160
161
162
163
     */
    public double correlation(final double[] xArray, final double[] yArray)
            throws DimensionMismatchException {

        if (xArray.length != yArray.length) {
            throw new DimensionMismatchException(xArray.length, yArray.length);
        }

        final int n = xArray.length;
        final long numPairs = sum(n - 1);

View Full Code Here
TOP

Related Classes of org.apache.commons.math3.analysis.function.Log

  • 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.FunctionUtilsTest
  • org.apache.commons.math3.analysis.integration.gauss.LegendreHighPrecisionTest
  • org.apache.commons.math3.analysis.integration.gauss.LegendreTest
  • org.apache.commons.math3.analysis.MultivariateFunction
  • org.apache.commons.math3.analysis.QuinticFunction
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.