Marco Riani, Professor of Statistics

      Univ. of Parma (ITALY)

MATLAB ROUTINES
Hawkins dataset: video

Hawkins data set: an analysis based on robust dynamic linking and brushing

This movie shows the close correspondence betweeen two forward plots: the scaled residuals and the minimum deletion residuals among observations not in the subset. By looking at each of them, it is obvious that there are three groups of outliers. By brushing the three groups, once at a time, in the scaled residual plot, we realise that the groups correspond to the three peaks in the final part of the minimum deletion residual plot.

To find out more about this dataset please see Chapter 2 of "Robust Diagnostic Regression Analysis"

To download the movie (Quick time format)


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