http://mon-osteo.net/wp-content/plugins/geodirectory/templates/loop/actions.php?dir=2423 Treemap in R
Găeşti 1. Portpolio package
Pros: Quick, simple, bigger output
Cons: One color scheme
2. Treemap package
Pros: More customization, several algorithms
Cons: smaller output size
http://cran.r-project.org/web/packages/treemap/treemap.pdf
Remarks:
Index must be factor.
Different types
comp: (size – color) / color
dens: color / size