I am in the process of generating trade areas for a selection of
retailers in various regions of South Africa. I've calculated Point
Densities using the Natural Neighbour Analysis --> Calculate Point
Density function of Vertical Mapper. Do the figures thus derived
represent the number of retailers per square km, which is what I would
have thought (if my distance units are set to km in my MapInfo). However
if I Sum all these density values then surely I should get the total
number of retailers that I used to generate the density values
initially.
I can find no reference (manual, help etc) to the manner in which these
densities are derived. Anyone's views?
Mark Lorenz
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