Launch the Nonlinear Platform

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Predictive and Specialized Modeling • Nonlinear Regression • Launch the Nonlinear Platform

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Launch the Nonlinear Platform

To launch the Nonlinear platform, select Analyze > Specialized Modeling > Nonlinear. The launch window is shown in Figure 12.4.

Figure 12.4 Nonlinear Platform Launch Window

The Nonlinear platform launch window has the following features:

Select the Y variable.

X, Predictor Formula

Select either the X variable or a column containing the model formula with parameters.

Note: If you select a column that does not contain a model formula with parameters, the Fit Curve platform is launched instead.

Specify a grouping variable. The fitted model has separate parameters for each level of the grouping variable. This enables you to compare fitted models and estimated parameters across the levels of the grouping variable.

Note: If the formula does not have separate parameters for each group level, the Group variable is ignored by JMP.

Specify a variable containing the weights of observations.

Specify a variable representing the frequency of an observation.

Specify a formula column giving a loss function.

Specify a variable to perform a separate analysis for every level of the variable.

Launches the Model Library tool, which helps you choose initial values to create a formula column. See Create a Formula Using the Model Library.

Numeric Derivatives Only

Uses only numeric derivatives only. This option is useful when you have a model for which it is too messy to take analytic derivatives. It can also be valuable in obtaining convergence in tough cases. This option is used only when a formula column is provided in the X, Predictor Formula role.

Expand Intermediate Formulas

Tells JMP that if an ingredient column to the model is a column that itself has a formula, to substitute the inner formula, as long as it refers to other columns. To prevent an ingredient column from expanding, use the Other column property with a name of “Expand Formula” and a value of 0. This option is used only when a formula column is provided in the X, Predictor Formula role.

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Help created on 7/12/2018