Need a 4-tuple with a +/- 50-tuple and a short integer. Needed it for a air quality measurement about lichens-species (+/- 50 tuple) in the 4 cardinal directions (4-tuple) on single trees (subtype). So that I can list tree-ID / -species / -scope / coordinates etc. and on every cardinal direction a list of lichens-species with a number between 0-5.
Thank you in advance