one {arrow} | R Documentation |
Get one value from each group
Description
Returns one arbitrary value from the input for each group. The function is biased towards non-null values: if there is at least one non-null value for a certain group, that value is returned, and only if all the values are null for the group will the function return null.
Usage
one(...)
Arguments
... |
Unquoted column name to pull values from. |
Examples
## Not run:
mtcars |>
arrow_table() |>
group_by(cyl) |>
summarize(x = one(disp))
## End(Not run)
[Package arrow version 19.0.1.1 Index]