# 款好用且免费的曲线拟合工具CurveFitter

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## 款好用且免费的曲线拟合工具CurveFitter

Fitter for parametric univariate 款好用且免费的曲线拟合工具CurveFitter real functions y = f(x).
When a univariate real function y = f(x) does depend on some unknown parameters p0, p1 . pn-1, this class can be used to find these parameters. It does this by fitting the curve so it remains very close to a set of observed points (x0, y0), (x1, y1) . (xk-1, yk-1). This fitting is done by finding the parameters values that minimizes the objective function ∑(yi-f(xi)) 2 . This is really a least squares problem.

## 款好用且免费的曲线拟合工具CurveFitter

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## Apache Commons CurveFitter tutorial with examples

Fitter for parametric univariate real functions y = f(x).

### Introduction

Fitter for parametric univariate real functions y = f(x).

It does this by 款好用且免费的曲线拟合工具CurveFitter fitting the curve so it remains very close to a set of observed points (x0, y0), (x1, y1) .

This fitting is done by finding the parameters values that minimizes the objective function ∑(yi-f(xi)) 2 .

This is really a 款好用且免费的曲线拟合工具CurveFitter least squares problem.

### Example

The following code shows how to use CurveFitter from org.apache.commons.math3.fitting.

## Apache Commons CurveFitter CurveFitter(final MultivariateVectorOptimizer optimizer) Simple constructor.

Apache Commons CurveFitter CurveFitter(final MultivariateVectorOptimizer optimizer) Simple constructor.

### Introduction

The method CurveFitter() is a constructor.

### Syntax

The method CurveFitter() from CurveFitter is declared as:

The method CurveFitter() has the following parameter:

• MultivariateVectorOptimizeroptimizer - Optimizer to use for the fitting.

### Example

The following code shows how to use CurveFitter from org.apache.commons.math3.fitting.

Specifically, the code shows you how to use Apache Commons CurveFitter CurveFitter(final MultivariateVectorOptimizer optimizer)