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using two sets of fill colors on the same ggplot

muhammad edy rizal answered on May 17, 2024 Popularity 1/10 Helpfulness 1/10

answer using two sets of fill colors on the same ggplot

using two sets of fill colors on the same ggplot

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library(ggplot2)
library(ggnewscale)
#> Warning: package 'ggnewscale' was built under R version 4.0.3

# Making dummy data
df <- data.frame(
  individual = rep(paste0("id", 1:5), each = 5),
  habitat = rep(paste0("hab", 1:5), 5),
  y = rnorm(25)
)
df$dir.selection <- factor(ifelse(
  df$y > 0.5, "Preferred",
  ifelse(df$y < -0.5, "Avoided", "-")
), levels = c("Preferred", "-", "Avoided"))

ggplot(df, aes(habitat, y)) +
  # First make the layer with the first fill scale
  geom_col(aes(fill = individual),
           position = "dodge") +
  # Apply the fill scale
  scale_fill_brewer(palette = "Set1") +
  # Then set the new scale. Every fill after this will be mapped to the new fill scale
  new_scale_fill() +
  # Make the second layer with the second fill
  geom_point(
    aes(fill  = dir.selection,
        shape = dir.selection,
        y = y + sign(y) * 0.2,
        group = individual),
    size = 5,
    position = position_dodge(width = 0.9)
  ) +
  scale_shape_manual(values = c(24, 21, 25),
                     name = "Direction of\nSelection") +
  # Set the second fill scale parallel to the shape scale
  scale_fill_manual(values = c("green", "blue", "red"),
                    name = "Direction of\nSelection")

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Source: stackoverflow.com

Tags: colors fill using whatever

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Contributed on May 17 2024

muhammad edy rizal

0 Answers Avg Quality 2/10

using two sets of fill colors on the same ggplot

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