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Numbers tweaks

This commit is contained in:
Hadley Wickham 2023-01-24 09:16:09 -06:00
parent fb80197bf7
commit 2316168cd4
1 changed files with 2 additions and 3 deletions
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numbers.qmd
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@ -104,9 +104,7 @@ There are a couple of variants of `n()` that you might find useful:
```{r} ```{r}
flights |> flights |>
group_by(dest) |> group_by(dest) |>
summarize( summarize(carriers = n_distinct(carrier)) |>
carriers = n_distinct(carrier)
) |>
arrange(desc(carriers)) arrange(desc(carriers))
``` ```
@ -122,6 +120,7 @@ There are a couple of variants of `n()` that you might find useful:
Weighted counts are a common problem so `count()` has a `wt` argument that does the same thing: Weighted counts are a common problem so `count()` has a `wt` argument that does the same thing:
```{r} ```{r}
#| results: false
flights |> count(tailnum, wt = distance) flights |> count(tailnum, wt = distance)
``` ```