R - pairs plot

• produces a scatterplot matrix
• with the panel argument you can include smoothers
• the unclass command changes the factor iris$Species into a vector of integers - so you can use it to define the colors of the points

example:

> data(iris)
> pairs(iris[1:4], main="Edgar Andersons Iris Data", panel=panel.smooth, pch=21, bg=c("red","green","blue")[unclass(iris$Species)],lwd=2,lty=2)

plot: