Good comments. The way I have viewed the role APL languages is that you use a general purpose language to do everything up to the point where you have a clean d

Good comments. The way I have viewed the role APL languages is that you use a general purpose language to do everything up to the point where you have a clean data array, then send it to APL for array juggling, then take the result back into the GP language for all follow-up tasks. Does this sound like the workflow for Q/K and other APL language users? My reading of IBM's APL2 literature is that they intended this workflow with Tcl as the GP language. The two big things I'm trying to get here are a comparison of how APL-family compares to R in that role and in reaching beyond that role to handle the stuff before and after.