Converts x to a factor and keeps its attributes. Warns appropriately such that the user
can decide whether they prefer converting to factor manually (e.g. for full control of
factor levels).
Usage
as_factor_keep_attributes(
x,
x_name = deparse(substitute(x)),
na_level = "<Missing>",
verbose = TRUE
)
Arguments
- x
(vector)
object to convert.
- x_name
(string)
name of x.
- na_level
(string)
the explicit missing level which should be used when converting a character vector.
- verbose
(flag)
defaults to TRUE. It prints out warnings and messages.
Value
A factor with same attributes (except class) as x. Does not modify x if already a factor.
