ggplot2 : Can't add ` ` to a ggplot object

Question

everyone I generated 2 ggplot figures and I would like now to add them into the same figure, to do that I simply add the +. So I have 2 plots : (1 ggtree and 1 heatmap)

and I'm trying to add them in the same plot with :

ggplot<- gg_tr + gg_heat + plot_annotation(tag_levels="A")

But then I get the following issue message:

Error : Can't add `gg_heat` to a ggplot object.
Run `rlang::last_error()` to see where the error occurred.

maybe you want to use the patchwork package - then + will combine plots — Richard Telford
– Richard Telford, Commented Jun 26, 2020 at 17:37

Duck · Accepted Answer · 2020-06-26 17:39:00Z

16

library(patchwork)
gg_tr + gg_heat

answered Jun 26, 2020 at 17:39

Duck

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1 Comment

kdarras Over a year ago

some explanation could be useful

Minh-Anh Huynh · Accepted Answer · 2022-04-28 10:23:32Z

0

If using ggpubr::ggarrange(), you need to put a comma and not a +.

ggarrange(histo_qmean, histo_gmean, histo_qmed, histo_gmed,
          labels = c("A", "B", "C", "D"),
          ncol = 2, nrow = 2)

I got the same error by wrongly using +, for anyone looking for it.

answered Apr 28, 2022 at 10:23

Minh-Anh Huynh

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Comments

Syscall · Accepted Answer · 2023-01-25 12:21:38Z

-3

Need to add parentheses

ggplot<- gg_tr() + gg_heat() + plot_annotation(tag_levels="A")

edited Jan 25, 2023 at 12:21

Syscall

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answered Jan 25, 2023 at 12:16

TomC

1

1 Comment

Smerla Over a year ago

This just produces error messages that R cannot find the function with the plot name.

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