# pretestcad 1.1.0

* Update documentation of `check_if_integer` to include examples.
* Update documentation of `check_if_non_negative` to include examples.
* Update documentation of `check_if_positive` to include examples.
* Update documentation of `check_if_numeric` to include examples.
* Update documentation of `arg_match0_allow_na` to include examples.
* Update documentation of `arg_match0_true_or_false` to include examples.
* Update documentation of `arg_match0_integer` to include examples.
* Add new functions `check_if_two_categories_are_mutually_exclusive`, 
`check_if_three_categories_are_mutually_exclusive` and `check_if_four_categories_are_mutually_exclusive`
to check for mutually exclusive sets.
* Add new functions `harmonise_two_labels`, 
`harmonise_two_labels` and `harmonise_two_labels`
to harmonise list of variables into a standardise list.
* Add new function `arg_match0_no_na_error_message`
to ensure a new error message can be given when the argument provided is \code{NA} but a non-missing list is provided.
* Add new functions `oxford_comma` and `chr_quoted` to ensure phrase list can be quoted and obey Oxford comma grammar system if needed.
* Add more flexibility to the pretest score functions to accept user input labels.

# pretestcad 1.0.2

* Indicate the return value in file `round_to_nearest_digit.Rd`.
* Correct spelling error in file `DESCRIPTION` from et. al. to et al.
* Add the full name of abbreviations RF-CL and CACS-CL in file `DESCRIPTION`.

# pretestcad 1.0.1

* Resolve invalid URL in `README.md` file.

# pretestcad 1.0.0

* Initial CRAN submission.
