Using lattice in R

http://www.his.sunderland.ac.uk/~cs0her/Statistics/UsingLatticeGraphicsInR.htm

## Multiple variables in formula for grouped displays

xyplot(Sepal.Length + Sepal.Width ~ Petal.Length + Petal.Width | Species, 
       data = iris, scales = "free", layout = c(2, 2),
       auto.key = list(x = .6, y = .7, corner = c(0, 0))) 

## user defined panel functions

states <- data.frame(state.x77,
                     state.name = dimnames(state.x77)[[1]], 
                     state.region = state.region) 
xyplot(Murder ~ Population | state.region, data = states, 
       groups = state.name, 
       panel = function(x, y, subscripts, groups)  
       ltext(x = x, y = y, label = groups[subscripts], cex=1,
             fontfamily = "HersheySans"))  

http://learnr.wordpress.com/2009/08/18/ggplot2-version-of-figures-in-lattice-multivariate-data-visualization-with-r-part-13/

http://data.princeton.edu/R/gettingStarted.html

http://www.r-bloggers.com/5-minute-analysis-in-r-case-shiller-indices/ 

http://lmdvr.r-forge.r-project.org/figures/figures.html