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Posted to jira@arrow.apache.org by "Ian Cook (Jira)" <ji...@apache.org> on 2021/10/03 19:13:00 UTC

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

Ian Cook created ARROW-14209:
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             Summary: [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
             Fix For: 7.0.0


ARROW-13620 and ARROW-14036 added support for the {{n_distinct()}} in 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.



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