Curve Fitting

When curve fitting is available for a selected item in Engineering Data a Curve Fitting group is accessible in the Workbench Toolbox. A curve fitting module can then be added to the selected item.

The data that can be used for the curve fitting module is shown, regardless of whether or not the data is available. If the required data is not available, add it from the Toolbox. The data used for curve fitting can be suppressed (in some instances), in the curve fitting module, to prevent its use in the curve fitting calculations.


Note:
  • Curve fitting is only active for the running session. If you exit the application, you must add the curve fitting module again. Select Copy Calculated Values to Property to maintain the calculated information.

  • If the active unit system for the project is changed, the current curve fitting modules in the project are recreated using the new unit system. The seed values are reset to their default values.

  • If the experimental data is parametrized, the current design point parameter value is used for the computations when selecting Solve Curve Fit. It has no effect for other design points when updating a project, because of the interactive nature of performing the fitting.


Curve fitting is specific to a given solver and so the following topics provide specific information:

Curve Fitting Icons

  Module for performing curve fitting.
  Indicates that this curve fitting module requires attention.