[postgis-users] Hex grid value interpolation

[Dave Barter]

I have a table of tessellated hexagons that I created as a hex binning grid to cover an area.

I've then overlaid a point set to give some of the hexagons a value. The shapes with value "0" have no value and I'd like to interpolate these from the values of the neighbours (ie. as per Kriging or other algorithm). How can I accomplish this in postgis given my table looks like:-

hex_grid_data
(
 gid SERIAL,
 wkb_geometry (geometry),
 value INTEGER
)


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