HS-1705: Simple Fit Study
Learn how to set up a space filling DOE study, and then set up a Fit.
Run Doe
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Add a DOE.
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Define specifications.
- Go to the step.
- In the work area, set the Mode to Hammersley.
- Click Apply.
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Evaluate tasks.
- Go to the step.
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View a plot which illustrates the dependency between Area 2 and Response 1 and
Response 2.
Run Fit
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Add a Fit.
- In the Explorer, right-click and select Add from the context menu.
- In the Add dialog, select Fit Existing Data and Setup, and click OK.
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Define specifications.
- Click the Fit Specifications tab.
- In the work area, Fit Type column, select Least Squares Regression (LSR) for both output responses.
- Click Apply.
Figure 2.
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Define matrix.
- Go to the step.
- In the work area, set Origin to Approach.
- For Origin Settings, select DOE 2.
- Click Apply.
Figure 3.
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Evaluate tasks.
- Go to the step.
- Click Evaluate Tasks.
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Post process results.
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Go back to the Specifications step and try different
methods until you find an acceptable fitting for both output responses.
With first order least squares, you have a Fit which explains most of the data’s variance, but it still has a relatively high prediction error.