geom_line does not work with a text aesthetic

[davidhodge931]

library(tidyverse)

ggplot2::economics |>
  mutate(text = glue::glue("Unemployment: {unemploy}")) |>
  ggplot(aes(x = date,y = unemploy)) +
  geom_line(aes(text = text))
#> Warning in geom_line(aes(text = text)): Ignoring unknown aesthetics: text

^{Created on 2023-07-28 with reprex v2.0.2}

[davidhodge931]

Requires group = 1 within the aes to work if a text aesthetic is added. Is fine without it, if a text aesthetic is not added

[teunbrand]

The warning tells you that geom_line() isn't supposed to work with a text aesthetic. Is this in any way related to how {plotly} uses such an aesthetic? Perhaps the larger issue here is that unrecognised aesthetics may influence the grouping even if they're not part of the proper geom. Mind that ?aes_group_order mentions 'all discrete variables in the plot', not 'all discrete mappings used in a layer' in the context of default groups.

[davidhodge931]

Ah, grouping issue - thanks @teunbrand

library(tidyverse)

p <- ggplot2::economics |>
  mutate(text = glue::glue("Unemployment: {unemploy}")) |>
  ggplot(aes(x = date,y = unemploy)) +
  geom_line(aes(text = text, group = 1))

plotly::ggplotly(p, tooltip = "text")