Rigroup {Rigroup} | R Documentation |
This package provides a number of optimized functions to quickly calculate a selected set of basic functions for each group in a data vector x where a small integer group vector i indicates group membership. Functions include Alls, Anys, Counts, Maxs, Means, Mins, Prods, Ranges and Sums.
K. Hendricks with lots of help from B. Dunlap
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igroupAlls
igroupAnys
igroupCounts
igroupMaxs
igroupMeans
igroupMins
igroupProds
igroupRanges
igroupSums