[jira] [Closed] (ARROW-13094) [R] Bindings for sign()

["Neal Richardson (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-13094?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Neal Richardson closed ARROW-13094.
-----------------------------------
    Fix Version/s:     (was: 6.0.0)
         Assignee: Neal Richardson  (was: Alenka Frim)
       Resolution: Duplicate

> [R] Bindings for sign()
> -----------------------
>
>                 Key: ARROW-13094
>                 URL: https://issues.apache.org/jira/browse/ARROW-13094
>             Project: Apache Arrow
>          Issue Type: Improvement
>          Components: R
>            Reporter: Ian Cook
>            Assignee: Neal Richardson
>            Priority: Major
>
> ARROW-12861 adds a {{sign}} kernel to the C++ library. Add a mapping to this in the R package.
> I think this should be as simple as just adding
> {code:java}
> "sign" = "sign",{code}
> to {{.unary_function_map}} in {{expression.R}}, plus a simple test.
> Note that the C++ library's {{sign}} kernel returns integer output whereas base R's {{sign}} function returns numeric (double) output, so a test written with {{expect_dplyr_equal()}} might fail unless it explicitly converts the output from {{sign()}} using {{as.numeric()}} or {{as.integer()}}.



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