As of Version 7.0, has been renamed to and has become a property of LinearModelFit.

is a possible value for the RegressionReport option for Regress and DesignedRegress which represents the effect on parameter values if data points are omitted.


  • 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 .
  • gives a list of values which measure the effect of removing a data point on the fitted parameters.
  • The i^(th) element in the list measures the effect of removing the i^(th) element of the dataset.
  • is also referred to as DFBETAS.
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