tests/testthat/_snaps/facet-.md

In ggplot2: Create Elegant Data Visualisations Using the Grammar of Graphics

facet_grid() fails if passed both a formula and a vars()

`rows` must be "NULL" or a `vars()` list if `cols` is a `vars()` list

can't pass formulas to cols

`cols` must be a `vars()` specification or `NULL`, not a <formula> object.

facet gives clear error if

Faceting variables can only appear in `rows` or `cols`, not both.
i Duplicated variables: "x"

`rows` must be "NULL" or a `vars()` list if `cols` is a `vars()` list
i Did you use `%>%` or `|>` instead of `+`?

A grid facet specification can't have more than two dimensions

`cols` must be a `vars()` specification or `NULL`, not the string "free".

at least one layer must contain all facet variables in combine_vars()

At least one layer must contain all faceting variables: `letter`
x Plot is missing `letter`
Layer is missing `letter`

combine_vars() generates the correct combinations

At least one layer must contain all faceting variables: `b` and `c`
x Plot is missing `c`
x Layer 1 is missing `b`

Faceting variables must have at least one value

validate_facets() provide meaningful errors

Please use `vars()` to supply facet variables

Please use `vars()` to supply facet variables
i Did you use `%>%` or `|>` instead of `+`?

check_layout() throws meaningful errors

Facet layout has a bad format. It must contain columns `PANEL`, `SCALE_X`, and `SCALE_Y`

ggplot2 documentation built on Oct. 12, 2023, 5:08 p.m.