ellipse	Make an ellipse 
ellipse.default	Produces an ellipse from a covariance matrix or a correlation 
ellipse.glm	Outline an approximate pairwise confidence region  
ellipse.lm	Outline a pairwise confidence region for a linear model fit. 
ellipse.nls	Outline an approximate pairwise confidence region  
ellipse.profile	Pairwise profile sketch 
ellipse.profile.glm	Profile sketch  
ellipse.profile.nls	Profile sketch 
pairs.profile.nls	Profile pairs 
plotcorr	Plot correlation matrix ellipses 
profile.glm	profile() for glm objects 
