As of Version 7.0, has been renamed to and has become a property of LinearModelFit.
- 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.
- The i element in the list is the ratio of the determinant of CovarianceMatrix for all the data points to the equivalent determinant with the i data element removed.
- A value less than or greater than , where n is the number of data points and p is the number of parameters, may indicate a highly influential point.