055_ggradar: radar plots - object 'rescale' not found

[Mangolinux]

FORMAT ----

vehicle_summary_tbl <- mpg %>%
select(class, where(is_numeric), -year) %>%
group_by(class) %>%
summarise(
across(displ:hwy, .fns = median)
) %>%
ungroup() %>%
rename(group = class) %>%
mutate_at(vars(-group), rescale)

Error in is_fun_list(.funs) : object 'rescale' not found
In addition: There were 11 warnings (use warnings() to see them)

warnings()
Warning messages:
1: Deprecated
2: Deprecated
3: Deprecated
4: Deprecated
5: Deprecated
6: Deprecated
7: Deprecated
8: Deprecated
9: Deprecated
10: Deprecated
11: Deprecated