Surface Plot - View Model
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Stat > DOE > Factorial  > Surface Plot > View Model

Displays information to help you determine whether you are using the correct model to create a surface plot. This dialog box does not take any input.

Minitab automatically stores the most recent model for a response variable each time you run the analysis. Any model that you previously fit for that response variable is overwritten. For this reason, it is important to verify that the currently stored model is the correct model.

Surface plot does not use the data in the worksheet. Instead, Minitab estimates the response surface based on a stored model. You must fit a model with two or more continuous variables before you can generate a surface plot. Surface plots are accurate only if the model represents the true relationships.

Read the Stored Model Overview for more details.

Dialog box items

Model Type: This dialog displays only the factorial design models in this worksheet that can create contour plots. To plot a different type of model, use the menu for that model type.

Response: Choose a response variable. The drop-down list displays all responses that have a model in the active worksheet.

Terms: Displays the terms that are in the last model that you fit for the specified response variable. Use your knowledge of the analysis' history to determine whether the current terms in the model correspond to the correct model. The terms list does not take any input.

Model status: Displays the status of the model associated with the response variable. If the model is out-of-date, you need to re-fit the model before you can create the plot. A model is out-of-date when the data have changed since you fit the model.