r - Suppress unused fill levels in ggplot2 legend - Stack Overflow

I have some data where when I create a bar plot, I always want certain levels to have a specific color. An example: library(tidyverse) set.seed(123) dat <- tibble(var = paste("Group"

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R, ggplot2 - In the legend, how do I hide unused colors from one geom while showing them in others? - Stack Overflow

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