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panelaggregation (version 0.1.1)

doUniqueCJ: Performs a Cross Join of Unique combinations

Description

This function makes use of CJ function of the data.table package to perform a cross join. The function makes sure that the combinations are unique and removes NAs before joining. doUniqueCJ is rather not used as a standalone function but inside computeShares.

Usage

doUniqueCJ(dt, cols)

Arguments

dt
data.table
cols
character vector that denotes names of relevant columns