GlobalCurveFitterFit(IListCurveFitDataSet, IListGlobalFitParameterInfo, Double, TupleDouble, Double) Method

Performs the fit with parameter upper and lower bound constraints to the given datasets. The fitted function must be defined (real-valued) for all x.

Namespace: CenterSpace.NMath.Core
Assembly: NMath (in NMath.dll) Version: 7.4

Syntax

C++

Copy

public double[][] Fit(
	IList<CurveFitDataSet> dataSets,
	IList<GlobalFitParameterInfo> parameterInfo,
	double[][] initialParameters,
	Tuple<double, double>[][] parameterBounds
)

Public Function Fit ( 
	dataSets As IList(Of CurveFitDataSet),
	parameterInfo As IList(Of GlobalFitParameterInfo),
	initialParameters As Double()(),
	parameterBounds As Tuple(Of Double, Double)()()
) As Double()()

public:
array<array<double>^>^ Fit(
	IList<CurveFitDataSet^>^ dataSets, 
	IList<GlobalFitParameterInfo^>^ parameterInfo, 
	array<array<double>^>^ initialParameters, 
	array<array<Tuple<double, double>^>^>^ parameterBounds
)

member Fit : 
        dataSets : IList<CurveFitDataSet> * 
        parameterInfo : IList<GlobalFitParameterInfo> * 
        initialParameters : float[][] * 
        parameterBounds : Tuple<float, float>[][] -> float[][]

Parameters

dataSets IListCurveFitDataSet: Datasets to fit.
parameterInfo IListGlobalFitParameterInfo: Parameter information.
initialParameters Double: Initial parameter values. initialParameters[i][j] is the initial value of the ith parameter for the jth data set.
parameterBounds TupleDouble, Double: Upper and lower bounds for the parameters. This jagged array must parallel the initialParameter array. Specifically, parameterBounds[i][j].Item1 and parameterBounds[i][j].Item2 are the lower and upper for the ith parameter and jth data set. This jagged array must have the same dimensions as initialParameters.

Return Value

Double
Parameter estimates as a jagged array of doubles. Note that we will get one parameter estimate for each shared parameter and N parameter estimates for each non-shared parameter, where N is the number of data sets. For example, p[i][j] is the value of the ith parameter for the jth data set. If the ith parameter is shared only the index j = 0 will be valid since we have only one parameter value. If the ith parameter is shared between the N data sets then indices j = 0, 1,..., N-1 are valid. For example: p[i][0] - value for the ith parameter if shared. p[i][0], p[i][1],..., p[i][N-1] - values for the ith non-shared parameter for data sets 0, 1,..., N-1. Parameter estimates satisfy parameterBounds[i][j].Item1 < p[i][j] > parameterBounds[i][j].Item2

Reference

GlobalCurveFitter Class

Fit Overload

CenterSpace.NMath.Core Namespace