Select unique values with 'select' function in 'dplyr' library

Question

Is it possible to select all unique values from a column of a data.frame using select function in dplyr library? Something like \

Answer 1

Just to add to the other answers, if you would prefer to return a vector rather than a dataframe, you have the following options:

dplyr < 0.7.0

Enclose the dplyr functions in a parentheses and combine it with $ syntax:

(mtcars %>% distinct(cyl))$cyl

dplyr >= 0.7.0

Use the pull verb:

mtcars %>% distinct(cyl) %>% pull()