Lattice: Add abline to Single Value qqmath() Plot
On Tue, 15 May 2012, David L Carlson wrote:
Take a look at section 3.3.6 qqmath http://www.his.sunderland.ac.uk/~cs0her/Statistics/UsingLatticeGraphicsInR.h tm You need to create a panel function. See sections 2.5.2 and 2.5.3 in the second chapter of the Lattice book (http://dsarkar.fhcrc.org/lattice/book/chapter2.pdf) available on Deepayan Sarkar's webpage. This is a simple example modified from the example in the lattice package manual: qqmath(~ rnorm(100), panel = function(x, ...) { panel.qqmathline(x, ...) panel.qqmath(x, ...) })
David, Thank you. I do need to learn more about panels in lattice. Much appreciated, Rich