formatscz: Czech formatted scales for ggplot2
In netique/mtaux: Master thesis auxiliary package

label_percent_cz() returns a formatter that outputs percent labels with a " %" suffix and a decimal comma. label_number_cz() uses space as thousand separator and decimal comma. Use these when you need to format labels on something other than X and Y axes

label_percent_cz(
  accuracy = NULL,
  scale = 100,
  prefix = "",
  suffix = " %",
  big.mark = " ",
  decimal.mark = ",",
  trim = TRUE,
  ...
)

label_number_cz(
  accuracy = NULL,
  scale = 1,
  prefix = "",
  suffix = "",
  big.mark = " ",
  decimal.mark = ",",
  trim = TRUE,
  ...
)

`accuracy`	A number to round to. Use (e.g.) `0.01` to show 2 decimal places of precision. If `NULL`, the default, uses a heuristic that should ensure breaks have the minimum number of digits needed to show the difference between adjacent values. Applied to rescaled data.
`scale`	A scaling factor: `x` will be multiplied by `scale` before formating. This is useful if the underlying data is very small or very large.
`prefix`	Symbols to display before and after value.
`suffix`	Symbols to display before and after value.
`big.mark`	Character used between every 3 digits to separate thousands.
`decimal.mark`	The character to be used to indicate the numeric decimal point.
`trim`	Logical, if `FALSE`, values are right-justified to a common width (see `base::format()`).
`...`	Other arguments passed on to `base::format()`.

library(mtaux)
library(ggplot2)
ggplot(mpg, aes(hwy, cty)) +
geom_point(aes(colour = cty/max(cty), size = hwy*100)) +
  theme_mt(family = "sans", title_family = "sans", gridlines = "scatter") +
  scale_color_binned(labels = label_percent_cz()) +
  scale_size_binned(labels = label_number_cz())