Fix potentially confusing footnote, closes #1516

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Mine Cetinkaya-Rundel 2023-10-30 08:51:55 -04:00 committed by GitHub
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@ -220,7 +220,7 @@ flights2
``` ```
There are four types of mutating join, but there's one that you'll use almost all of the time: `left_join()`. There are four types of mutating join, but there's one that you'll use almost all of the time: `left_join()`.
It's special because the output will always have the same rows as `x`[^joins-2]. It's special because the output will always have the same rows as `x`, the data frame you're joining to[^joins-2].
The primary use of `left_join()` is to add in additional metadata. The primary use of `left_join()` is to add in additional metadata.
For example, we can use `left_join()` to add the full airline name to the `flights2` data: For example, we can use `left_join()` to add the full airline name to the `flights2` data: