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Patchwork of patwchrok does not handle title properly #434

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Patchwork of patwchrok does not handle title properly#434

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@dmongin
dmongin
opened on Jun 17, 2025

related to #432, I noticed another error:

If I do the following to avoid the legend error (as suggested here https://stackoverflow.com/questions/79663257/how-to-handle-legend-properly-with-patchwork/79663866?noredirect=1#comment140511944_79663866)

p1 <- ggplot(iris,aes(Sepal.Length,Sepal.Width,color = Species))+
  geom_point() 

first_plot <- p1 + 
  inset_element(p1 + guides(color = "none"), 
                right = 0.5,left = 0,
                bottom = .55,top =  1) + 
  plot_annotation(title = "plouf1")

Image

p2 <- ggplot(iris,aes(Sepal.Length,Sepal.Width,color = Petal.Width))+
  geom_point()

second_plot <- p2 + inset_element(p2+ guides(color = "none"), 
                                  right = 0.5,left = 0,
                                  bottom = .55,top =  1) + 
  plot_annotation(title = "plouf2")

Image

Each plot has his title. But when doing:

first_plot + second_plot

Image

I just have the first title, and even worst:

(first_plot + second_plot)/(first_plot + second_plot)

Image

Here I have no title anymore

Activity

  1. Breeze-Hu commented on Jun 18, 2025

    @Breeze-Hu
    Breeze-Hu
    on Jun 18, 2025

    I feel as if the situation is somewhat similar to this issue: #416

    Looking forward to the developer's fix :-)

  2. bug1303 commented on Mar 17, 2026

    @bug1303
    bug1303
    on Mar 17, 2026

    Had a similar issue and found a work-around here: https://stackoverflow.com/questions/69970971/plot-annotations-disappear-via-patchwork-in-r

    You can do

    wrap_elements(first_plot) + wrap_elements(second_plot)

    or even:

    (wrap_elements(first_plot) + wrap_elements(second_plot))/(wrap_elements(first_plot) + wrap_elements(second_plot))

    Also described in the docs (https://patchwork.data-imaginist.com/articles/guides/annotation.html#titles-subtitles-and-captions):
    "It is important to note that plot annotations only have an effect on the top-level patchwork. Any annotation added to nested patchworks are (currently) lost. If you need to have annotations for a nested patchwork you’ll need to wrap it in wrap_elements() with the side-effect that alignment no longer works."

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