[jira] [Commented] (ARROW-12137) [R] New/improved vignette on dplyr features

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

    [ https://issues.apache.org/jira/browse/ARROW-12137?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17316782#comment-17316782 ] 

Neal Richardson commented on ARROW-12137:
-----------------------------------------

Here's an example from the taxi dataset that shows a messy string column and three kinds of queries: base R function, stringr, and an arrow_ prefixed compute function that doesn't have an R mapping (afaik)

{code}
ds %>%
  select(payment_type) %>%
  mutate(
    allcaps = toupper(payment_type),
    chars = str_length(allcaps),
    is_upper = arrow_ascii_is_upper(payment_type)
  ) %>%
  head(10) %>%
  collect()
{code}

> [R] New/improved vignette on dplyr features
> -------------------------------------------
>
>                 Key: ARROW-12137
>                 URL: https://issues.apache.org/jira/browse/ARROW-12137
>             Project: Apache Arrow
>          Issue Type: New Feature
>          Components: R
>            Reporter: Neal Richardson
>            Assignee: Ian Cook
>            Priority: Major
>             Fix For: 4.0.0
>
>




--
This message was sent by Atlassian Jira
(v8.3.4#803005)