SpatialBinnedPointData
SpatialBinnedPointData[{reg1->val1,reg2->val2,…}] represents values vali associated with disjoint regions regi.
SpatialBinnedPointData[{reg1,reg2,…}->{val1,val2,…}] gives the same result.
SpatialBinnedPointData[…,reg] gives the overall observation region reg.
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