I am pruning a classification tree using the minimum error and I want to plot the final output. This final output has a considerable amount of terminal nodes and I am trying to find a way to avoid the overlapping between them. So far I have tried using cex and tweak without any luck to modify the font size and see if this affects the layout of the terminal nodes but it seems it doesn't. Anybody knows if there is a way of modifying the terminal nodes layout when using fancyRpartPlo so they are further away and do not overlap?
game.full=prune(game.cart,cp=cp.min)
fancyRpartPlot(game.full, uniform=TRUE,main="Pruned Regression Tree",tweak=3)
Rattle's fancyRpartPlot() is simply using the rpart.plot package. There are very many options available to control the text and layout. You may like to review http://www.milbo.org/rpart-plot/prp.pdf.