One or more unquoted expressions separated by commas. You can treat
variable names like they are positions, so you can use expressions like x:y
to select ranges of variables.
Use named arguments, e.g. new_name = old_name, to rename selected variables.
The arguments in ... are automatically quoted and evaluated in a context where
column names represent column positions. They also support unquoting and splicing.
See vignette("programming", package = "dplyr")
for an introduction to these concepts.
See select helpers for more details and examples about tidyselect helpers such as starts_with(), everything(), ...