Intermezzo: missing values (4)

Notice the effect of names_expand in pivot_wider()!

daily |>
  pivot_wider(
    names_from = day,
    values_from = value,
    names_expand = TRUE
  )

## # A tibble: 1 × 7
##     Mon   Tue   Wed   Thu   Fri   Sat   Sun
##   <dbl> <dbl> <dbl> <dbl> <dbl> <dbl> <dbl>
## 1     5     2    NA     3     1    NA    NA