Sets the names of x to nm.
If nm is a function, it is used to transform the already existing names of x.
set_names(x, nm = x, ...):: vector().
:: (character() | function())
New names, or function which transforms already existing names.
:: any
Passed down to nm if nm is a function.
x with updated names.
# NOT RUN {
x = letters[1:3]
# name x with itself:
x = set_names(x)
print(x)
# convert names to uppercase
x = set_names(x, toupper)
print(x)
# }