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crossing() is similar to expand_grid() but de-duplicates and sorts its inputs.
crossing()
expand_grid()
crossing.(..., .name_repair = "check_unique")
Variables to get unique combinations of
Treatment of problematic names. See ?vctrs::vec_as_names for options/details
?vctrs::vec_as_names
x <- 1:2 y <- 1:2 crossing(x, y) crossing(stuff = x, y)
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