Curve Fitting Toolbox

Getting Started with the Curve Fitting Toolbox

This chapter describes a particular example in detail to help you get started with the Curve Fitting Toolbox. In this example, you will fit census data to several toolbox library models, find the best fit, and extrapolate the best fit to predict the US population in future years. In doing so, the basic steps involved in any curve fitting scenario are illustrated. These steps include

Opening the Curve Fitting Tool	The Curve Fitting Tool is the main toolbox interface.
Importing the Data	The data must exist as vectors in the MATLAB workspace. After importing, you can view the data, mark data points to be excluded from the fit, and smooth the data.
Fitting the Data	Explore various parametric and nonparametric fits, and compare fit results graphically and numerically.
Analyzing the Fit	Evaluate (interpolate or extrapolate), differentiate, or integrate the fit.
Saving Your Work	Save your work for documentation purposes or for later analysis.

Typographical Conventions Opening the Curve Fitting Tool