As of Version 7.0, has become a property of LinearModelFit.

is a possible value for the RegressionReport option to Regress and DesignedRegress which represents the change in the model sum of squares as nonconstant basis functions are removed.


  • To use , you first need to load the Regression Common Functions Package. You can do this by using , which will automatically load the Regression Common Functions Package, or you can load the package directly by using .
  • is useful for trimming a large set of predictors.
  • Basis functions yielding a small value for the partial sum of squares have less influence on the fit.
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