[jira] [Commented] (ARROW-14209) [R] Allow multiple arguments to n_distinct()

["Todd Farmer (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/ARROW-14209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17610650#comment-17610650 ] 

Todd Farmer commented on ARROW-14209:
-------------------------------------

This issue was last updated over 90 days ago, which may be an indication it is no longer being actively worked. To better reflect the current state, the issue is being unassigned per [project policy|https://arrow.apache.org/docs/dev/developers/bug_reports.html#issue-assignment]. Please feel free to re-take assignment of the issue if it is being actively worked, or if you plan to start that work soon.

> [R] Allow multiple arguments to n_distinct()
> --------------------------------------------
>
>                 Key: ARROW-14209
>                 URL: https://issues.apache.org/jira/browse/ARROW-14209
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: R
>            Reporter: Ian Cook
>            Assignee: Dragoș Moldovan-Grünfeld
>            Priority: Major
>
> ARROW-13620 and ARROW-14036 added support for the {{n_distinct()}} function in the dplyr verb {{summarise()}} but only with a single argument. Add support for multiple arguments to {{n_distinct()}}. This should return the number of unique combinations of values in the specified columns/expressions.
> See the comment about this here: [https://github.com/apache/arrow/pull/11257#discussion_r720873549]



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