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Regression models for count data, including zeroinflated, zerotruncated, and hurdle models as well as generalized count data regression. Drivers for combination with flexmix and mboost are also provided. For (graphically) assessing the goodness of fit for (regression) models, rootograms and quantile residuals are available.
Package details 


Author  Achim Zeileis [aut, cre] (<https://orcid.org/0000000309183766>), Christian Kleiber [aut] (<https://orcid.org/0000000267814733>), Thorsten Simon [ctb] (<https://orcid.org/0000000237787738>) 
Maintainer  Achim Zeileis <Achim.Zeileis@Rproject.org> 
License  GPL2  GPL3 
Version  0.21 
Package repository  View on RForge 
Installation 
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