Add a way to label the plots like A, B, C etc.

[koundy]

No description provided.

[llrs]

This has been discussed in issues #1 and #6

[peterchristofferholm]

As a work-around i ended up using the title as the label and adjust placement accordingly.

theme_set(
  theme_bw() +
    theme(plot.title = element_text(hjust = -0.05, size = 16,
                                    margin = margin(t = -5, b = 1)),
          plot.subtitle = element_text(size = 12))
)

p1 <- p1 + labs(title = "A",
                subtitle = "Distribution of logCPM values before and after filtering")
p2 <- p2 + labs(title = "B", 
                subtitle = "Voom, mean-variance trend")

p1 + p2 + plot_layout(ncol = 1, heights = c(1, 2)) 

I think this approach is quite viable and easy to use.

[thomasp85]

I'll be awaiting a native ggplot2 solution as proposed here

Following that I'll add a way to automatically add tags to plots with potential knowledge of nesting level - something like:

p1 + p2 + (p3 + p4) + plot_tags(format = c('A', '1'), suffix = ')')

which would add the following tags:

p1: A)
p2: B)
p3: C1)
p4: C2)

Already added tags would be overwritten

[adrfantini]

Now that tags are implemented in ggplot, do you plan to provide a plot_tags function? (ora maybe it's there already and I'm missing it?)

[thomasp85]

It’s there already in the plot_annotation function

[adrfantini]

Got it, thanks!

[rmflight]

There is an open pull request to add the plot_annotation to the README #64

[efratushava]

It’s there already in the plot_annotation function

Can you please give an example of how to use tag level?