How to adjust all, absolutely all line widths in graphics made with ggplot2?

Question

I'm trying to standardize the aesthetics of my graphics with ggplot2. I used the theme_set() function for this. However, when looking closely at the graphics, not all lines have the desired width. In the following MWE, it is observed that the boxes and the horizontal line do not meet the standardization. This situation is also repeated with the lines of geom_smooth(). How can I solve this?

library(ggplot2)
theme_set(
  theme_bw() +
    theme(text = element_text(size = 8),
          line = element_line(colour = 1, size = 0.12),
          rect = element_rect(colour = 1, size = 0.12))
)

ggplot(data = ToothGrowth) +
  geom_boxplot(aes(x = supp, y = len)) +
  facet_grid(~dose) +
  geom_hline(yintercept = 20,
             color = "red")

Zooming..

First sentence in`?theme`: Themes are a powerful way to customize the **non-data** components of your plots — Henrik, Mar 17 '21 at 21:41
@Henrik Got it. Do you know any way to customize data components? — Daniel Valencia C., Mar 17 '21 at 21:50

score 2 · Answer 1 · answered Mar 17 '21 at 22:06

2

Add these before the ggplot call:

update_geom_defaults("boxplot", list(size = 0.12))
update_geom_defaults("hline", list(size = 0.12))

answered Mar 17 '21 at 22:06

Jon Spring

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How to adjust all, absolutely all line widths in graphics made with ggplot2?

1 Answers1