By default, ggplot2 arranges facets in alphabetical order based on the factor levels of the variable you facet by. This behavior is logical but not always useful. Analysts often need to reverse or customize facet order to match reporting requirements, presentation style, or … [Read more...] about How to Reverse and Reorder Facets in ggplot2 (R) with fct_rev, factor, and fct_relevel