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Selecting a random subset of grid cells

Question asked by Jo_182 on May 27, 2019
Latest reply on Aug 2, 2019 by Hornbydd

I need to select a random subset of spatially independent grid cells for a species occupancy modelling study.  I defined my sampling units as 100x100m grid cells covering the entire study area. However, these grids are continuous and not independent from one another (see attached). I would like to select a random subset of grids (let's say 50%) which is at least 100m from the closest grid (between each grid cell there must be at least a 100m distance). Any advice on this will be much appreciated, also, I'm using ArcGis 10.6.

Continuous sampling grid