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Modeling and Multivariate Methods - SAS

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Chapter 9 Performing Nonlinear Regression 259<br />

Fit a Custom Model<br />

Nonlinear Fit Report<br />

The initial Nonlinear Fit report includes the following items, shown in Figure 9.12.<br />

Control Panel<br />

Provides options for controlling the fitting process.<br />

Go starts the fitting process.<br />

Stop stops the fitting process.<br />

Step proceeds through the fitting process one iteration at a time.<br />

Reset reset the editable values into the formula, reset the iteration values, <strong>and</strong> calculate the SSE at these<br />

new values.<br />

Criterion shows iteration measures from the fitting process <strong>and</strong> the Current values.<br />

Stop Limit sets limits on the Criterion.<br />

Plot Shows a plot of the X <strong>and</strong> Y variables for models with only one X variable. The model based on the<br />

current values is shown on the plot. To change the current values of the parameters, use the sliders or<br />

edit boxes beneath the plot.<br />

Figure 9.12 Initial Nonlinear Fit Report

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