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Provide the CrossClustering algorithm (Tellaroli et al. (2016) <doi:10.1371/journal.pone.0152333>), which is a partial clustering algorithm that combines the Ward's minimum variance and Complete Linkage algorithms, providing automatic estimation of a suitable number of clusters and identification of outlier elements.
Package details 


Author  Paola Tellaroli [cre, aut], Marco Bazzi [aut], Michele Donato [aut], Livio Finos [aut], Philippe Courcoux [aut], Corrado Lanera [aut] 
Maintainer  Paola Tellaroli <paola.tellaroli@gmail.com> 
License  GPL (>= 3) 
Version  4.0.3 
URL  https://CRAN.Rproject.org/package=CrossClustering 
Package repository  View on CRAN 
Installation 
Install the latest version of this package by entering the following in R:

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