I have some figures like this one. In the x-axis I have two categories of ant behavior: subordinate and dominant.I have the effect of each ant behavior on two variables: floral visits (pink dots) and plant reproductive performance (green dots).
What I'd like to do is instead of appear subordinate and dominant twice, I'd like to appear only once and in the middle of the two variables. Is there an easy way to do this in ggplot2?