[ARROW-17366] [R] Support purrr-style lambda functions in .fns argument to across()

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 10.0.0
• Component/s: R
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/32639
• Assignee: Nicola Crane
• Reporter: Nicola Crane
• Created: 09/Aug/22 23:34
• Updated: 11/Jan/23 11:50
• Resolved: 07/Oct/22 11:15

Description

ARROW-11699 adds support for dplyr::across inside a mutate(). The .fns argument does not yet support purrr-style lambda functions (e.g. ~round(.x, digits = -1) but should be added.

As well as this, we should check the new ways in which these functions can be specified (n.b. using \x) as we might want to support both while the older way isn't fully deprecated yet.

Issue Links

• links to: GitHub Pull Request #14276
• links to: GitHub Pull Request #14327