Top "Geom-hline" questions

How to add a legend to hline?

I'd like to add a legend to hline plot. The head of my subset looks like this Site Date Al 1 …

r ggplot2 legend geom-hline
How to produce different geom_vline in different facets in R?

I am trying to produce 2 different geom_vlines with different colours in 2 different facets of a dataset. I am doing …

r ggplot2 facet-wrap geom-hline