powered by
addlabels(gg, x, y, label, color = NULL, ...)
ggplot
ggoban
graphic_parameters
ggoban(19) %>% addstones(c(16, 4), c(16, 3), c(1, 2)) %>% addlabels(c(4, 3), c(17, 16), c("a", "b"))
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