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A bit more about group_by()

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Hadley Wickham 2022-11-18 16:17:43 -06:00
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data-transform.qmd
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@ -420,6 +420,7 @@ flights |>
`group_by()` doesn't change the data but, if you look closely at the output, you'll notice that it's now "grouped by" month. `group_by()` doesn't change the data but, if you look closely at the output, you'll notice that it's now "grouped by" month.
This means subsequent operations will now work "by month". This means subsequent operations will now work "by month".
`group_by()` doesn't do anything by itself; instead it changes the behavior of the subsequent verbs.
### `summarize()` {#sec-summarize} ### `summarize()` {#sec-summarize}