Set the global option options(stringsAsFactors = FALSE) inside a parent function and restore the option after the parent function exits
This is a shorthand of opts = options(stringsAsFactors = FALSE);
on.exit(options(opts), add = TRUE); strings_please() is an alias of
stringsAsStrings().
stringsAsStrings() strings_please()
f = function() {
xfun::strings_please()
data.frame(x = letters[1:4], y = factor(letters[1:4]))
}
str(f()) # the first column should be characterPlease choose more modern alternatives, such as Google Chrome or Mozilla Firefox.