Treemap in R
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
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