R script for jittering the upcall versus detector figure from Temporal variation in the vocal behaviour of southern right whales in the Auckland Islands, New Zealand WebsterT. A. Van ParijsS. M. RaymentW. J. DawsonS. M. 2019 R script for a figure to show the number of automatically detected upcalls per recording vs the number of upcalls detected by the analyst. Points required jittering by 0.6 to offset and reveal overlapping points.