xy_formatC: A wrapper for 'formatC'
In LAJordanger/HVLstatistikk: HVL - simple shiny applications for teaching.

Description Usage Arguments Value

This wrapper for formatC includes code that allows for some additional tweaking to be taken care of when a number is converted to a text-string. It was primarily created in order to resolve an issue related to the disappearance of trailing zeros when adding numbers to a ggplot. (Reminder: The problem occurred when parse=TRUE was used when adding text/labels.)

1 2	xy_formatC(x, digits = 3, not_IEC60559 = TRUE, .plotmath = TRUE, .decimal = ".")

`x`	The number that should be converted to text.
`digits`	A number, default value `3`, to be given to the `digits`-argument of `round`.
`.plotmath`	A logical value, default `TRUE`, which will ensure that the format of the returned character-string works as desired when included as a part of some text or label in a `ggplot`. In particular, this ensures that any trailing zeros are properly preserved when `parse=TRUE` is used when adding the text.
`.decimal`	A character, default value `.`, which is to be used for the decimal sign for the converted number. This enables the decimal sign to be replaced with `,`, which is of interest for those countries where that is the norm.
`not_IEC60599`	A logical value, default `TRUE`, which can be used to round `x` in the same manner a human normally would do, e.g. that "2.5" rounds to "3" instead of "2". Reminder: This is included to avoid that students must be explained why the rounding used in the text is different from what they themselves have computed.

A character-string based on x, modified according to the description given in the arguments digits, not_IEC60599, .plotmath and .decimal. Reminder: The result will have an attribute named equal, which is included sine the intended use of this function is that it will be called from xy_sprintf, which then will either add an equality sign or an approximation sign based on the value of the equal-attribute.