Preliminaries / asides

• This chapter introduces position scales and axes or guides.
• Recommended: read documentations of the {scales} package, since that handles a lot of the (re-)scaling and transformation under the hood.
  • Start with rstudio::conf2020 talk on scales.
• It should also be noted that there’s some discussion about revamping the scales_* API. See issue #4269 and PR #4271