Using the edge element in SPSS inline GPL with arbitrary X,Y coordinates

This post is intended to be a brief illustration of how one can utilize the edge element in SPSS's GGRAPH statements to produce vector flow fields. I post this because the last time I consulted the GGRAPH manual (which admittedly is probably a few versions olds) they only have examples of SPSS's ability to utilize...  Continue reading Using the edge element in SPSS inline GPL with arbitrary X,Y coordinates