Additional reference lines

geom_3s(lwd = 1.35, lty = 1, col = "darkgrey", yintercept = c(-3, 3), ...)

layer_3s(x, lwd = 1.35, lty = 1, col = "darkgrey", yintercept = c(-3, 3), ...)

Arguments

lwd	passed to `geom_hline`
lty	passed to `geom_hline`
col	passed to `geom_hline`
yintercept	passed to `geom_hline`
...	passed to `geom_hline`
x	ggplot object