http://magnitude6.ca/?tartaruru=rueil-malmaison-rencontre-sur-gratuit&a38=cf scatter plot equivalent to pairs() by ggplot.
uzaleznienie od randek http://stackoverflow.com/questions/3735286/pairs-equivalent-in-ggplot2
Hadley recommends using the GGally package instead. It has a function, ggpairs that is a vastly improved pairs plot (lets you use non-continuous variables in your data frames). It plots different plots in each square, depending on the variable types: