Package org.apache.commons.math3.analysis

Examples of org.apache.commons.math3.analysis.MultivariateVectorFunction

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        }
        return r / points.size();
    }

    public ModelFunction getModelFunction() {
        return new ModelFunction(new MultivariateVectorFunction() {
                public double[] value(double[] params) {
                    Vector2D center = new Vector2D(params[0], params[1]);
                    double radius = getRadius(center);
                    double[] residuals = new double[points.size()];
                    for (int i = 0; i < residuals.length; i++) {
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                    }
                });
        }

        public ObjectiveFunctionGradient getObjectiveFunctionGradient() {
            return new ObjectiveFunctionGradient(new MultivariateVectorFunction() {
                    public double[] value(double[] point) {
                        double[] r = factors.operate(point);
                        for (int i = 0; i < r.length; ++i) {
                            r[i] -= target[i];
                        }
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            time.add(t);
            count.add(c);
        }

        public MultivariateVectorFunction getModelFunction() {
            return new MultivariateVectorFunction() {
                public double[] value(double[] params) {
                    double[] values = new double[time.size()];
                    for (int i = 0; i < values.length; ++i) {
                        final double t = time.get(i);
                        values[i] = params[0] +
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            time.add(t);
            count.add(c);
        }

        public ModelFunction getModelFunction() {
            return new ModelFunction(new MultivariateVectorFunction() {
                    public double[] value(double[] params) {
                        double[] values = new double[time.size()];
                        for (int i = 0; i < values.length; ++i) {
                            final double t = time.get(i);
                            values[i] = params[0] +
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    public void testGetIterations() {
        AbstractLeastSquaresOptimizer optim = createOptimizer();
        optim.optimize(new MaxEval(100), new Target(new double[] { 1 }),
                       new Weight(new double[] { 1 }),
                       new InitialGuess(new double[] { 3 }),
                       new ModelFunction(new MultivariateVectorFunction() {
                               public double[] value(double[] point) {
                                   return new double[] {
                                       FastMath.pow(point[0], 4)
                                   };
                               }
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        final RealMatrix factors =
            new Array2DRowRealMatrix(new double[][] {
                    { 1, 0 },
                    { 0, 1 }
                }, false);
        LeastSquaresConverter ls = new LeastSquaresConverter(new MultivariateVectorFunction() {
                public double[] value(double[] variables) {
                    return factors.operate(variables);
                }
            }, new double[] { 2.0, -3.0 });
        SimplexOptimizer optimizer = new SimplexOptimizer(-1, 1e-6);
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        final RealMatrix factors =
            new Array2DRowRealMatrix(new double[][] {
                    { 1, 0 },
                    { 0, 1 }
                }, false);
        LeastSquaresConverter ls = new LeastSquaresConverter(new MultivariateVectorFunction() {
                public double[] value(double[] variables) {
                    return factors.operate(variables);
                }
            }, new double[] { 2, -3 }, new double[] { 10, 0.1 });
        SimplexOptimizer optimizer = new SimplexOptimizer(-1, 1e-6);
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        final RealMatrix factors =
            new Array2DRowRealMatrix(new double[][] {
                    { 1, 0 },
                    { 0, 1 }
                }, false);
        LeastSquaresConverter ls = new LeastSquaresConverter(new MultivariateVectorFunction() {
                public double[] value(double[] variables) {
                    return factors.operate(variables);
                }
            }, new double[] { 2, -3 }, new Array2DRowRealMatrix(new double [][] {
                    { 1, 1.2 }, { 1.2, 2 }
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            = new MultiStartMultivariateVectorOptimizer(underlyingOptimizer, 10, generator);
        optimizer.optimize(new MaxEval(100),
                           new Target(new double[] { 0 }),
                           new Weight(new double[] { 1 }),
                           new InitialGuess(new double[] { 0 }),
                           new ModelFunction(new MultivariateVectorFunction() {
                                   public double[] value(double[] point) {
                                       throw new TestException();
                                   }
                               }));
    }
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        public Target getTarget() {
            return new Target(target);
        }

        public ModelFunction getModelFunction() {
            return new ModelFunction(new MultivariateVectorFunction() {
                    public double[] value(double[] variables) {
                        return factors.operate(variables);
                    }
                });
        }
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Related Classes of org.apache.commons.math3.analysis.MultivariateVectorFunction

  • 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.MultivariateFunction
  • org.apache.commons.math3.analysis.QuinticFunction
  • org.apache.commons.math3.analysis.solvers.BrentSolver
  • org.apache.commons.math3.analysis.UnivariateFunction
  • org.apache.commons.math3.complex.Complex
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