Diagnostic plots for leverage.
An object of class
A panel of diagnostic plots for leverage.
Pregibon, D. (1981), “Logistic Regression Diagnostics,” Annals of Statistics, 9, 705–724.
Fox, John (1991), Regression Diagnostics. Newbury Park, CA: Sage Publications.
Cook, R. D. and Weisberg, S. (1982), Residuals and Influence in Regression, New York: Chapman & Hall.