geom_vline {ggplot2} | R Documentation |
These geoms add reference lines (sometimes called rules) to a plot,
either horizontal, vertical, or diagonal (specified by slope and
intercept). These are useful for annotating plots.
geom_vline(xintercept,
color = "black",
line.width = 2,
linetype = Solid);
Parameters that control the position of the line. If these are set, data, mapping and show.legend are overridden. [as double]
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[as DashStyle]