I'm having some conceptual issues around data formats, even within the tidyverse.
My data is in what I understand is called "wide" format, which each variable in its own column. This is, I understand, the "preferred" data format for R packages, as described in r4ds ([tidy-data]https://r4ds.had.co.nz/tidy-data.html).
What I'm failing to grok is the need to transform this into "long" format when I wish to invoke ggplot (or, at least its boxplot function).
I understand (I think!) how to do this, but I'm totally failing to see why, or indeed to know what other packages might require their data transformed in this way.