densplot(Theoph, conc, grid = TRUE )
densplot(Theoph, conc, grid = TRUE, gg = TRUE )
densplot(Theoph, conc, Subject )
densplot(Theoph, conc, , Subject )
densplot(Theoph, conc, , Subject, gg = TRUE, scales = 'free_y' )
attr(Theoph,'title') <- 'Theophylline'
densplot(Theoph, conc, main= function(x,...)attr(x,'title'))
densplot(Theoph, conc, sub= function(x,...)attr(x,'title'))
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