I made a plot with points connected with a line. In this plot I want to draw a vertical line from a point on the x-axis to the intersection with the plot line.And at the intersection, I want to dra...

I created a scatter plot with geom_hline() and geom_vline(), the plot is good but the legend entries are not how I would like to make them appear. The vline (Restauration) and hline (Threshold) are...

I am trying to produce 2 different geom_vlines with different colours in 2 different facets of a dataset. I am doing this to highlight means of 2 different facets. Here's the dataset: Pclass Sex Ag...

The following code causes an unwanted cross effect in the legend. ggplot() + geom_vline(aes(xintercept=1,colour="vertical"), show.legend = NA) + geom_hline(aes(yintercept=1,colour="horizontal")...

I'd like to add a legend to hline plot. The head of my subset looks like this Site Date Al 1 Bo6 2014-10-07 152.1 2 Bo1 2014-10-07 157.3 3 Bo3 2014-10-07 207.1 4 Bo4 2014-10-07 184.3 5 Bo5 2014...