I have made a cowplot using
gg <- cowplot::plot_grid(p1, p2)
I now want to add a ggplot2::geom_point()
layer to p1
but I only have access to gg
. How can I pull p1
and p2
back out, add a layer to p1
and then make a new cowplot, cowplot::plot_grid(p1_new, p2)
?
I tried
cowplot::plot_grid(ggplot2::ggplot() +
gg$layers[[1]]$setup_layer +
ggplot2::geom_point(ggplot2::aes(x = x, y = y)),
ggplot2::ggplot() + gg$layers[[2]])
but that does not work. I don't really understand how ggplot2
(and cowplot
) store the plots, grobs, layers, etc.