Re: [I] [R] How to replace NA with another value using arrow or R libraries [arrow]

["eitsupi (via GitHub)" <gi...@apache.org>]

eitsupi commented on issue #38473:
URL: https://github.com/apache/arrow/issues/38473#issuecomment-1781324329

   The query you want to do is probably something like this:
   
   ``` r
   df <- data.frame(a = 1:3, b = c(1, NA, 3))
   df |>
     arrow::as_arrow_table() |>
     dplyr::mutate(dplyr::across(everything(), ~ dplyr::coalesce(.x, 0))) |>
     dplyr::collect()
   #> # A tibble: 3 × 2
   #>       a     b
   #>   <dbl> <dbl>
   #> 1     1     1
   #> 2     2     0
   #> 3     3     3
   ```
   
   <sup>Created on 2023-10-26 with [reprex v2.0.2](https://reprex.tidyverse.org)</sup>
   
   `tidyr::replace_na` can be accomplished using `dplyr::across` and `dplyr::coaless`.
   Please check the document <https://tidyr.tidyverse.org/reference/replace_na.html#see-also>.
   
   See also https://github.com/apache/arrow/issues/36458#issuecomment-1624594686


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