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Contains: 1) Facilities for working with grouped data: 'do' something to data stratified 'by' some variables. 2) LSmeans (leastsquares means), general linear contrasts. 3) Miscellaneous other utilities.
Package details 


Author  Søren Højsgaard <sorenh@math.aau.dk> and Ulrich Halekoh <uhalekoh@health.sdu.dk> 
Maintainer  Søren Højsgaard <sorenh@math.aau.dk> 
License  GPL (>= 2) 
Version  4.6.7 
URL  http://people.math.aau.dk/~sorenh/software/doBy/ 
Package repository  View on CRAN 
Installation 
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