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| R2012a Documentation → Curve Fitting Toolbox | |
Learn more about Curve Fitting Toolbox |
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| Contents | Index |
This table summarizes what's new in Version 2.2 (R2010a):
New Features and Changes | Version Compatibility Considerations | Fixed Bugs and Known Problems |
|---|---|---|
Yes | Yes—Details labeled as Compatibility Considerations, below. See also Summary. | Bug
Reports |
A new toolbar in Surface Fitting Tool makes it easier to discover and control plotting options. You can use the toolbar to:
Toggle plot mode between Rotate 3D, Data Cursor, and Exclude Outliers
Control which plots are displayed of Surface, Residuals and Contour plots
Control the Legend, Grid and Axis Limits
See Exploring and Customizing Plots in the Surface Fitting Tool documentation.
In Surface Fitting Tool, plot mode now defaults to Rotate 3D. A common surface fitting workflow is to manipulate and view the surface plot from various angles. You no longer have to select plot rotate mode initially, because it is now on by default. You can use the toolbar to switch to data cursor or exclude outliers mode. When you turn off data cursor or exclude outliers mode, your cursor mode is automatically set back to Rotate.
See Using Zoom, Pan, Data Cursor, and Outlier Exclusion in the Surface Fitting Tool documentation.
The initial surface fit for polynomials is now a linear plane in x and y (poly11). Previously the default fit was a quadratic polynomial in x and y (poly22).
If you are going to use a polynomial to fit a model, it can be helpful to start by looking at a reference plane.
See in the Surface Fitting Tool documentation.
The gaussian library model has been updated to use improved starting value defaults. You may see different answers to previous releases because of the improved starting values.
See in the Interactive Curve Fitting documentation.
| Function Element Name | What Happens When You Use This Function Element | Use This Instead | Compatibility Considerations |
|---|---|---|---|
| 'Algorithm', 'Gauss-Newton' property name/value pair as input to fitoptions method | Warns when you call the fit method | 'Algorithm', 'Levenberg- Marquardt' property name/value pair as input to fitoptions method | Use 'Levenberg- Marquardt'as the value for Algorithm instead. |
 | Version 3.0 (R2010b) Curve Fitting Toolbox Software | Version 2.1 (R2009b) Curve Fitting Toolbox Software |  |
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