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LabVIEW Signal Processing by Mahesh L. Chugani, Abhay R. Samant, Michael Cerna

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Chapter 7. Curve Fitting

Overview

In this chapter, you will learn about the Analysis VIs that are used to fit curves to data points.

Goals

  • Understand the concept of curve fitting and its applications.

  • Learn how to use the General Least Squares Linear Fit VI.

  • Learn how to use the Nonlinear Levenberg-Marquardt Fit VI.

  • Be able to fit a curve to Gaussian (Normal) data points.

About Curve Fitting

In the digital domain, a data set can be represented by two input sequences: Y Values and X Values. A sample or point in the data set can be written as

(x[i], y[i])

where x[i] is the ith element of the sequence X Values, and y[i] is the ith element of the sequence ...

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