Mutating joins: examples

flights2 |>
  left_join(airlines)

## Joining with `by = join_by(carrier)`

## # A tibble: 336,776 × 7
##    year time_hour           origin dest  tailnum carrier name                  
##   <int> <dttm>              <chr>  <chr> <chr>   <chr>   <chr>                 
## 1  2013 2013-01-01 05:00:00 EWR    IAH   N14228  UA      United Air Lines Inc. 
## 2  2013 2013-01-01 05:00:00 LGA    IAH   N24211  UA      United Air Lines Inc. 
## 3  2013 2013-01-01 05:00:00 JFK    MIA   N619AA  AA      American Airlines Inc.
## 4  2013 2013-01-01 05:00:00 JFK    BQN   N804JB  B6      JetBlue Airways       
## # ℹ 336,772 more rows