ggplot2 does things differently for several good reasons -- for example, by rebuilding the interface around the grammar of graphics, making construction and com

ggplot2 does things differently for several good reasons -- for example, by rebuilding the interface around the grammar of graphics, making construction and composition of plots much more coherent. http://vita.had.co.nz/papers/layered-grammar.pdf http://vita.had.co.nz/papers/layered-grammar.pdf