Nothing
ddd <- ddd %>%
mutate(
afacet = factor(paste("a=", a, sep = "")),
bfacet0 = factor(paste("b=", b, sep = "")),
bfacet = factor(bfacet0, levels = rev(levels(bfacet0)))
)
gf_point(Y ~ X, data = ddd, color = ~original) %>%
gf_facet_grid(bfacet ~ afacet, scale = "free") %>%
gf_theme(axis.ticks = element_blank(), axis.text = element_blank(), legend.position = "none")
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