Add the fmt_partsper() function
#914
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* master: Make changes based on code review Correct stopifnot stmts Make changes based on code review Make corrections based on code review Don't show ind suffix for is.infinite(x) or x == 0 Simplify formatting in Ind number system Revise docs for `insert_seps_ind()` util fn Refactor insertion point calculation Add missing space Update test-fmt_percent.R Update test-fmt_fraction.R Update utils_formatters.R Update format_data.R Add several testthat tests Update help files using roxygen Ensure that 'ind' system produces suffixes Simplify formatting of integers Implement Indian numbering system support
jcheng5
suggested changes
Mar 29, 2022
rich-iannone
changed the title
fmt_ratio() functionfmt_partsper() function
* master: Improve layout of examples in documentation (#933)
jcheng5
approved these changes
Apr 26, 2022
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With the new
fmt_partsper()function, we can now format values as high-ratio, dimensionless quantities. These are less common that percentage values but no less important (some of these are used extensively, depending on the field of study). The list of formats (with their associated keywords) are:"per-mille": Per mille, (1 part in1,000)"per-myriad": Per myriad, (1 part in10,000)"pcm": Per cent mille (1 part in100,000)"ppm": Parts per million, (1 part in1,000,000)"ppb": Parts per billion, (1 part in1,000,000,000)"ppt": Parts per trillion, (1 part in1,000,000,000,000)"ppq": Parts per quadrillion, (1 part in1,000,000,000,000,000)The function is structured similarly to
fmt_percent()but there is some flexibility here to provide a replacement symbol if needed (e.g.,ppm->ppmV).Here is an example with per mille formatting:
Fixes: #608