I want to be able to compare the angles of neighbours in a herd of hippos. I have data for the x and y coordinates and the angles that they are facing (using imageJ, angles are between -180 and 180 with 0 being a horizontal straight line across the middle of the image). I have plotted the $g(r)$ function to see whether my hippos 'like' to orient themselves towards individuals that are nearby, but I would love to be able to compute a visual representation of their orientation in the herd using R
.
Any help would be much appreciated, I'm not really R
literate yet!