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Force Legends to Stay Separate

Source: R/legend_multi.R
legend_split.Rd

Force specified legends to remain separate by assigning different order values, preventing automatic merging.

Usage

legend_split(...)

Arguments

...

Aesthetic names (unquoted) to keep separate. E.g., colour, fill.

Value

A guides specification that can be added to a plot.

Details

By default, ggplot2 merges legends that have matching titles and labels. This function assigns different order values to each legend, which prevents automatic merging.

See also

legend_merge, legend_order_guides

Examples

library(ggplot2)

# Plot where colour and fill would normally merge
p <- ggplot(mtcars, aes(mpg, wt, color = factor(cyl), fill = factor(cyl))) +
  geom_point(shape = 21, size = 3, stroke = 1.5) +
  labs(color = "Cylinders", fill = "Cylinders")

# Force separate legends
p + legend_split(colour, fill)