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The 'base' tools union() intersect(), etc., follow the algebraic definition that each element of a set must be unique. Since it's often helpful to compare all elements of two vectors, this toolset treats every element as unique for counting purposes. For ease of use, all functions in vecsets have an argument 'multiple' which, when set to FALSE, reverts them to the base::sets (alias for all the items) tools functionality.
Package details 


Author  Carl Witthoft 
Maintainer  Carl Witthoft <carl@witthoft.com> 
License  LGPL3 
Version  1.3 
Package repository  View on CRAN 
Installation 
Install the latest version of this package by entering the following in R:

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