tests/testthat/_snaps/scale-discrete.md

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

Scale is checked in default colour scale

Code
  scale_colour_discrete(type = scale_colour_gradient)
Condition
  Error in `scale_backward_compatibility()`:
  ! The `type` argument must return a discrete scale for the colour aesthetic.
  x The provided scale is continuous.

Code
  scale_fill_discrete(type = scale_fill_gradient)
Condition
  Error in `scale_backward_compatibility()`:
  ! The `type` argument must return a discrete scale for the fill aesthetic.
  x The provided scale is continuous.

Code
  scale_colour_discrete(type = scale_fill_hue)
Condition
  Error in `scale_backward_compatibility()`:
  ! The `type` argument must return a continuous scale for the colour aesthetic.
  x The provided scale works with the following aesthetics: fill.

Code
  scale_fill_discrete(type = scale_colour_hue)
Condition
  Error in `scale_backward_compatibility()`:
  ! The `type` argument must return a continuous scale for the fill aesthetic.
  x The provided scale works with the following aesthetics: colour.

Aesthetics with no continuous interpretation fails when called

A continuous variable cannot be mapped to the linetype aesthetic.
i Choose a different aesthetic or use `scale_linetype_binned()`.

A continuous variable cannot be mapped to the shape aesthetic.
i Choose a different aesthetic or use `scale_shape_binned()`.

mapped_discrete vectors behaves as predicted

Code
  mapped_discrete(letters)
Condition
  Error in `mapped_discrete()`:
  ! Can't convert `x` <character> to <double>.

invalid palettes trigger errors

Code
  ggplot_build(p + scale_x_discrete(palette = function(x) LETTERS[1:3]))
Condition
  Error in `scale_x_discrete()`:
  ! The `palette` function must return a <numeric> vector.

Code
  ggplot_build(p + scale_x_discrete(palette = function(x) 1:2))
Condition
  Error in `scale_x_discrete()`:
  ! The `palette` function must return at least 3 values.

tidyverse/ggplot2 documentation built on April 13, 2025, 11:34 a.m.