**Cook's Distance**

**Definition of Cook's Distance:**
Cook's distance is a metric for deciding whether a particular point alone affects regression
estimates much. After a regression is run one can consider for each data
point how far it is from the means of the independent variables and the
dependent variable. If it is far from the means of the independent variables
it may be very influential and one can consider whether the regression results
are similar without it.
(Econterms)

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