Change size of label annotations in a ggplot

Question

I am trying to change text label sizes inside my plot (not the axes, rather the label annotations)

I am working with a phyloseq object but I don't think that matters. Here is the code and the output. Any suggestions?

plot_ordination(prokaryote_ra, ordBC, color = "Stage", label="SampleID") +  ggtitle("PCoA: Bray-Curtis")

graph of ordination plot with label annotations that are too small

Dear Zack Thanknyou very much for your answer!! – Ezra Orlofsky Aug 28 '20 at 14:03 — Ezra Orlofsky, Aug 28 '20 at 14:03

score 2 · Accepted Answer · answered Aug 27 '20 at 12:53

Looks like size for the text label is a fixed value 2, in the plot_ordination() function see L1135 at GitHub in plot-methods.R file

...
p = p + geom_text(label_map, data=rm.na.phyloseq(DF, label),
                      size=2, vjust=1.5, na.rm=TRUE) # <--- here size is set to 2
...

Solution would be either submit an issue at GitHub, and wait for an update from maintainer, or copy paste the function locally, and change the size to match your needs.

Change size of label annotations in a ggplot

1 Answers1