the Equal Error Rate (EER) is the point on the ROC curve that corresponds to have an equal probability of miss-classifying a positive or negative sample. This point is obtained by intersecting the ROC curve with a diagonal of the unit square.
Anyway, in the results, it should be the "cost-effective" cut-off point.
I am looking to plot a lot of these herrorbars together on one graph, to facilitate this is it possible to reduce the circle size, and also to reduce or even remove the vertical lines at the end of each arm? (Also is it possible to have other markers for the midpoint other than a circle?