As of Version 7.0, FitCurvatureTable has become a property of NonlinearModelFit.
- To use FitCurvatureTable, you first need to load the Regression Common Functions Package. You can do this by using Needs["NonlinearRegression`"], which will automatically load the Regression Common Functions Package, or you can load the package directly by using Needs["RegressionCommon`"].
- FitCurvatureTable includes the maximum relative intrinsic curvature, the maximum relative parameter-effects curvature, and the relative curvature of the least-squares solution confidence region.
- Diagnostics in the fit curvature table give information about the validity of other diagnostics.
- If curvatures are high, diagnostics based on linear approximations may give poor results.