Method Detail

• create

  public static SimpleCurveFitter create(ParametricUnivariateFunction f,
                         double[] start)

  Creates a curve fitter. The maximum number of iterations of the optimization algorithm is set to Integer.MAX_VALUE.

  Parameters:

  f - Function to fit.

  start - Initial guess for the parameters. Cannot be null. Its length must be consistent with the number of parameters of the function to fit.

  Returns:

  a curve fitter.

  See Also:

  withStartPoint(double[]), withMaxIterations(int)

• withStartPoint

  public SimpleCurveFitter withStartPoint(double[] newStart)

  Configure the start point (initial guess).

  Parameters:

  newStart - new start point (initial guess)

  Returns:

  a new instance.

• withMaxIterations

  public SimpleCurveFitter withMaxIterations(int newMaxIter)

  Configure the maximum number of iterations.

  Parameters:

  newMaxIter - maximum number of iterations

  Returns:

  a new instance.

• getProblem

  protected LeastSquaresProblem getProblem(Collection<WeightedObservedPoint> observations)

  Creates a least squares problem corresponding to the appropriate curve.

  Specified by:

  getProblem in class AbstractCurveFitter

  Parameters:

  observations - Sample points.

  Returns:

  the least squares problem to use for fitting the curve to the given points.