Examples of ConvergenceException

net.sf.doodleproject.numerics4j.exception.ConvergenceException
The exception raised when an iterative method fails to converge. @version $Revision: 1.2 $ $Date: 2007/10/25 04:44:18 $
org.apache.commons.math.ConvergenceException
Error thrown when a numerical computation can not be performed because the numerical result failed to converge to a finite value. @version $Revision: 983921 $ $Date: 2010-08-10 12:46:06 +0200 (mar. 10 août 2010) $
org.apache.commons.math.exception.ConvergenceException
Error thrown when a numerical computation can not be performed because the numerical result failed to converge to a finite value. @since 2.2 @version $Revision: 1026666 $ $Date: 2010-10-23 21:30:48 +0200 (sam. 23 oct. 2010) $
org.apache.commons.math3.exception.ConvergenceException
Error thrown when a numerical computation can not be performed because the numerical result failed to converge to a finite value. @since 2.2

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

                            break;
                        case FARTHEST_POINT :
                            newCenter = getFarthestPoint(clusters);
                            break;
                        default :
                            throw new ConvergenceException(LocalizedFormats.EMPTY_CLUSTER_IN_K_MEANS);
                    }
                    emptyCluster = true;
                } else {
                    newCenter = cluster.getCenter().centroidOf(cluster.getPoints());
                }

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

            }
        }


        // did we find at least one non-empty cluster ?
        if (selected == null) {
            throw new ConvergenceException(LocalizedFormats.EMPTY_CLUSTER_IN_K_MEANS);
        }


        // extract a random point from the cluster
        final List<T> selectedPoints = selected.getPoints();
        return selectedPoints.remove(random.nextInt(selectedPoints.size()));

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


        }


        // did we find at least one non-empty cluster ?
        if (selected == null) {
            throw new ConvergenceException(LocalizedFormats.EMPTY_CLUSTER_IN_K_MEANS);
        }


        // extract a random point from the cluster
        final List<T> selectedPoints = selected.getPoints();
        return selectedPoints.remove(random.nextInt(selectedPoints.size()));

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


        }


        // did we find at least one non-empty cluster ?
        if (selectedCluster == null) {
            throw new ConvergenceException(LocalizedFormats.EMPTY_CLUSTER_IN_K_MEANS);
        }


        return selectedCluster.getPoints().remove(selectedPoint);


    }

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

                }


                // tests for termination and stringent tolerances
                // (2.2204e-16 is the machine epsilon for IEEE754)
                if ((FastMath.abs(actRed) <= 2.2204e-16) && (preRed <= 2.2204e-16) && (ratio <= 2.0)) {
                    throw new ConvergenceException(LocalizedFormats.TOO_SMALL_COST_RELATIVE_TOLERANCE,
                            costRelativeTolerance);
                } else if (delta <= 2.2204e-16 * xNorm) {
                    throw new ConvergenceException(LocalizedFormats.TOO_SMALL_PARAMETERS_RELATIVE_TOLERANCE,
                            parRelativeTolerance);
                } else if (maxCosine <= 2.2204e-16)  {
                    throw new ConvergenceException(LocalizedFormats.TOO_SMALL_ORTHOGONALITY_TOLERANCE,
                            orthoTolerance);
                }
            }
        }
    }

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

                for (int j = k; j < weightedResidualJacobian.length; ++j) {
                    double aki = weightedResidualJacobian[j][permutation[i]];
                    norm2 += aki * aki;
                }
                if (Double.isInfinite(norm2) || Double.isNaN(norm2)) {
                    throw new ConvergenceException(LocalizedFormats.UNABLE_TO_PERFORM_QR_DECOMPOSITION_ON_JACOBIAN,
                            rows, cols);
                }
                if (norm2 > ak2) {
                    nextColumn = i;
                    ak2        = norm2;

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

                double scaleFactor = 1d;
                double lastScaleFactor = 1d;
                final int maxPower = 5;
                final double scale = FastMath.max(a,b);
                if (scale <= 0) {  // Can't scale
                    throw new ConvergenceException(LocalizedFormats.CONTINUED_FRACTION_INFINITY_DIVERGENCE,
                                                   x);
                }
                infinite = true;
                for (int i = 0; i < maxPower; i++) {
                    lastScaleFactor = scaleFactor;
                    scaleFactor *= scale;
                    if (a != 0.0 && a > b) {
                        p2 = p1 / lastScaleFactor + (b / scaleFactor * p0);
                        q2 = q1 / lastScaleFactor + (b / scaleFactor * q0);
                    } else if (b != 0) {
                        p2 = (a / scaleFactor * p1) + p0 / lastScaleFactor;
                        q2 = (a / scaleFactor * q1) + q0 / lastScaleFactor;
                    }
                    infinite = Double.isInfinite(p2) || Double.isInfinite(q2);
                    if (!infinite) {
                        break;
                    }
                }
            }


            if (infinite) {
               // Scaling failed
               throw new ConvergenceException(LocalizedFormats.CONTINUED_FRACTION_INFINITY_DIVERGENCE,
                                              x);
            }


            double r = p2 / q2;


            if (Double.isNaN(r)) {
                throw new ConvergenceException(LocalizedFormats.CONTINUED_FRACTION_NAN_DIVERGENCE,
                                               x);
            }
            relativeError = FastMath.abs(r / c - 1.0);


            // prepare for next iteration

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

                    break;
                case REGULA_FALSI:
                    // Detect early that algorithm is stuck, instead of waiting
                    // for the maximum number of iterations to be exceeded.
                    if (x == x1) {
                        throw new ConvergenceException();
                    }
                    break;
                default:
                    // Should never happen.
                    throw new MathInternalError();

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

            dN = 1 / dN;
            final double deltaN = cN * dN;
            hN = hPrev * deltaN;


            if (Double.isInfinite(hN)) {
                throw new ConvergenceException(LocalizedFormats.CONTINUED_FRACTION_INFINITY_DIVERGENCE,
                                               x);
            }
            if (Double.isNaN(hN)) {
                throw new ConvergenceException(LocalizedFormats.CONTINUED_FRACTION_NAN_DIVERGENCE,
                                               x);
            }


            if (FastMath.abs(deltaN - 1.0) < epsilon) {
                break;

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

                            break;
                        case FARTHEST_POINT :
                            newCenter = getFarthestPoint(clusters);
                            break;
                        default :
                            throw new ConvergenceException(LocalizedFormats.EMPTY_CLUSTER_IN_K_MEANS);
                    }
                    emptyCluster = true;
                } else {
                    newCenter = centroidOf(cluster.getPoints(), cluster.getCenter().getPoint().length);
                }

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