Start plot_annotation() labels from input value

[snystrom]

Some of my use-cases require making a plot that includes panels that are not ggplot objects. It would be great if plot_annotation() could be told which letter/number/numeral to start from in its labeling.

Alternately, is it currently possible (or easier to implement) to pass a vector of custom annotations?

[thomasp85]

It is not currently possible but I might consider adding it

[SDAMcIntyre]

Maybe the same, but maybe not quite - it would be great if there was an option in plot_annotation() to include the blanks in the layout (created by '#' in design or plot_spacer()), so they get a label as well.

e.g.:

layout <- '
AB
CD
'
wrap_plots(A = plot1, B = plot2, C = plot_spacer(), D = plot3, design = layout) + 
  plot_annotation(tag_levels = 'A', include_blanks = TRUE)

So then they would be labelled with A, B, C and D, rather than A, B, nothing, and C.

[pforny]

Is this option available now? I would very much like to label the blanks created by plot_spacer(). Thanks! :)

[ahdee]

@snystrom with the new version ef5ca4f

you could just add your customize ( for example say u want to start with E) like this:

d=ggplot()

d + d + plot_annotation(tag_levels = list(c('E', 'F'), '1'))