R ggplot: "cross effect" in legend (not going away with show.legend = NA)...

geom_vline, legend and performance...

ggplot geom vline between two dates on x axis...

ggplotly() does not display geom_vline / geom_hline when data is POSIXct...

Control ggplot parameter in asthetics from geom_vline - legend names and colors...

Why doesn't my geom_vline object show up on my plot?...