It is natural to use the same function as the previous code chunk. (#1492)

iteration.qmd

@@ -261,7 +261,7 @@ If you'd like to instead create new columns, you can use the `.names` argument t
 ```{r}
 df_miss |> 
   mutate(
-    across(a:d, \(x) abs(x), .names = "{.col}_abs")
+    across(a:d, \(x) coalesce(x, 0), .names = "{.col}_na_zero")
   )
 ```