Options in {cards}

cards.round_type

There are two types of rounding types in the {cards} package that are implemented in label_round(), alias_as_fmt_fn(), and apply_fmt_fn() functions' round_type argument.

• 'round-half-up' (default): rounding method where values exactly halfway between two numbers are rounded to the larger in magnitude number. Rounding is implemented via round5().

• 'round-to-even': base R's default IEC 60559 rounding standard. See round() for details.

To change the default rounding to use IEC 60559, this option must be set both when the ARDs are created and when apply_fmt_fn() is run. This ensures that any default formatting functions created with label_round() utilize the specified rounding method and the method is used what aliases are converted into functions (which occurs in apply_fmt_fn() when it calls alias_as_fmt_fn()).