groups: Return grouping variables
In YTLogos/dplyr: A Grammar of Data Manipulation

group_vars() returns a character vector; groups() returns a list of symbols.

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groups(x)

group_vars(x)

x

A tbl()

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df <- tibble(x = 1, y = 2) %>% group_by(x, y)
group_vars(df)
groups(df)

YTLogos/dplyr documentation built on May 20, 2019, 1:44 p.m.

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