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new 5c64b6eda4 MINOR: [R] Add news bullet for mutate() enhancement in 17.0
(#43189)
5c64b6eda4 is described below
commit 5c64b6eda44a1b5d37fa2206880fca920fbef362
Author: Neal Richardson <[email protected]>
AuthorDate: Mon Jul 8 16:36:27 2024 -0400
MINOR: [R] Add news bullet for mutate() enhancement in 17.0 (#43189)
### Rationale for this change
I noticed this was missing from the NEWS, and it's kinda important.
### What changes are included in this PR?
A news bullet
### Are these changes tested?
Nope!
### Are there any user-facing changes?
📰
---
r/NEWS.md | 1 +
1 file changed, 1 insertion(+)
diff --git a/r/NEWS.md b/r/NEWS.md
index 317e546a1b..1e8a480ef5 100644
--- a/r/NEWS.md
+++ b/r/NEWS.md
@@ -20,6 +20,7 @@
# arrow 16.1.0.9000
* R functions that users write that use functions that Arrow supports in
dataset queries now can be used in queries too. Previously, only functions that
used arithmetic operators worked. For example, `time_hours <- function(mins)
mins / 60` worked, but `time_hours_rounded <- function(mins) round(mins / 60)`
did not; now both work. These are automatic translations rather than true
user-defined functions (UDFs); for UDFs, see `register_scalar_function()`.
(#41223)
+* `mutate()` expressions can now include aggregations, such as `x - mean(x)`.
(#41350)
* `summarize()` supports more complex expressions, and correctly handles cases
where column names are reused in expressions.
* The `na_matches` argument to the `dplyr::*_join()` functions is now
supported. This argument controls whether `NA` values are considered equal when
joining. (#41358)
* R metadata, stored in the Arrow schema to support round-tripping data
between R and Arrow/Parquet, is now serialized and deserialized more strictly.
This makes it safer to load data from files from unknown sources into R
data.frames. (#41969)
