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Create numbering according to unique rows
RowGroups(x, returnGroups = FALSE, returnGroupsId = FALSE)
Data frame or matrix
When TRUE unique rows are returned
When TRUE Index of unique rows are returned
A vector with the numbering or, according to the arguments, a list with more output.
# NOT RUN { a <- data.frame(x = c("a", "b"), y = c("A", "B", "A"), z = rep(1:4, 3)) RowGroups(a) RowGroups(a, TRUE) RowGroups(a[, 1:2], TRUE, TRUE) RowGroups(a[, 1, drop = FALSE], TRUE) # }
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