Facet labels on the right side

August 21, 2024

So, I’m trying to create a plot using facet_wrap.
However, I want the facet labels to be on the right side of the plot, not on top of it.

Here is my code:

library(ggplot2)

# Create the scatter plot with facets for Species
plot <- ggplot(iris, aes(x = Sepal.Length, y = Sepal.Width, color = Species)) +
  geom_point(size = 3) +  # Scatter plot with larger points
  facet_wrap(~ Species, ncol = 1) +  # Facet by Species in rows (to position labels on the right)
  labs(title = "Sepal Length vs Sepal Width by Species",
       x = "Sepal Length",
       y = "Sepal Width") +
  theme_minimal() +
  theme(
    legend.position = "none",
    strip.text.y = element_text(size = 12, angle = 0),  # Facet labels on the right side
    strip.placement = "outside",                         # Place facet labels outside the plot area
    strip.background = element_blank(),                  # Remove background for clarity
    panel.spacing = unit(1, "lines"),                    # Adjust spacing between panels
    axis.title.y = element_blank(),                      # Remove y-axis title for clarity
    axis.text.y = element_blank()                        # Remove y-axis text for clarity
  )

print(plot)

This generates:

But I want something like this:

Thanks in advance!

>Solution :

You can reposition facet strips by setting strip.position = 'right'

library(ggplot2)


ggplot(iris, aes(x = Sepal.Length, y = Sepal.Width, color = Species)) +
  geom_point(size = 3) +  # Scatter plot with larger points
  facet_wrap(~ Species, ncol = 1,
             strip.position = 'right') +  # Facet by Species in rows (to position labels on the right)
  labs(title = "Sepal Length vs Sepal Width by Species",
       x = "Sepal Length",
       y = "Sepal Width") +
  theme_minimal() +
  theme(
    legend.position = "none",
    strip.text.y = element_text(size = 12, angle = 0),  # Facet labels on the right side
    strip.placement = "outside",                         # Place facet labels outside the plot area
    strip.background = element_blank(),                  # Remove background for clarity
    panel.spacing = unit(1, "lines"),                    # Adjust spacing between panels
    axis.title.y = element_blank(),                      # Remove y-axis title for clarity
    axis.text.y = element_blank()                        # Remove y-axis text for clarity
  )