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Construct directed graphs of S4 class hierarchies and visualize them. In general, these graphs typically are DAGs (directed acyclic graphs), often simple trees in practice.
Package details 


Author  Martin Maechler partly based on code from Robert Gentleman 
Date of publication  20150901 17:43:43 
Maintainer  Martin Maechler <maechler@stat.math.ethz.ch> 
License  GPL 
Version  0.75 
Package repository  View on CRAN 
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