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How to remove the thin vertical line in orchard_plot() that affects x-axis alignment across multiple plots? #14

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@ShengwenXu98

Hi orchaRd team,

Thanks for developing such a powerful visualization tool for meta-analysis! I’m using orchard_plot() for subgroup analysis with angle = 90 and combining multiple orchard plots (e.g., by land type, fertilizer type, cropping regime) using cowplot::plot_grid(). However, I encountered an issue where a very thin vertical line appears in each orchard plot and prevents the x-axes from aligning across subplots.

Here are the details:

I’ve already set trunk.size = 0, twig.size = 0, g = FALSE, and k = FALSE.

I’ve also set scale_x_continuous(limits = c(-1, 5), expand = c(0, 0)) to force all plots to share the same x-axis.

Still, each plot seems to retain a faint vertical line (possibly a default geom_linerange() or similar?) that takes up plotting space and makes zero lines appear misaligned when stacking the figures.

Questions:

What exactly is this line? Is it part of the CI layer (e.g., geom_linerange) or another internal structure?

Is there currently a way to remove or suppress this layer completely while still keeping the CI bars for each subgroup?

Would it be possible to add a new argument to orchard_plot() to disable this line explicitly?

Thank you so much for your time and consideration. I’d be happy to provide a minimal reproducible example if needed!

Image

Best regards,

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