Cook's distance

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Overview

In statistics, the Cook's distance is a commonly used estimate of the influence of a data point when doing least squares regression. Cook's distance measures the effect of deleting a given observation. Data points with large residuals (outliers) and/or high leverage may distort the outcome and accuracy of a regression. Points with a Cook's distance of 1 or more are considered to merit closer examination in the analysis.

See Also

  • DFFITS

References

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Procedure for calculating Cook's distance


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