[postgis-users] How to IDW interpolation from points in PostGIS

[chingchai humhong]

Dear All,
I'm trying to find PostGIS Raster functions supports the Inverse Distance
Weighted interpolation method (IDW) and Kriging interpolation method.
I'm especially trying to generate a temperature map from a geometry
table(temperature values) with point locations in PostGIS.
Can someone please point me in the right direction?
Thank you.

-- 
Chingchai  Humhong
Regional Center of Geo-Informatics and
Space Technology, Lower Northern Region
Naresuan University Phitsanulok 65000
Lat:16.742496, Lon:100.191605
Map:
http://maps.googleapis.com/maps/api/staticmap?center=16.742496,100.191605&zoom=14&size=400x400&sensor=false
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