Performing some mathematical transformations in Geostatistical Analyst

1069
1
02-20-2012 03:56 AM
OrhanGUNDUZ
New Contributor
Hi guys:

I need to perform some simple mathematical transformations on my cokrigged surface within Geostatistical Analyst. I know this is doable after the surface is exported as a grid and processed in Map Algebra. But I want to stay inside GA and do my computations within the tool.

Anybody got any idea?

Thanks,

Orhan
0 Kudos
1 Reply
EricKrause
Esri Regular Contributor
The back-transformation needs to be built into the kriging step.  You can't simply apply a transformation, perform kriging, then apply the back-transformation to the results.  In other words, you should stick to the transformations that we've developed and integrated into the kriging: Log, Box-Cox, ArcSin, and Normal Score.

The Normal Score is the most functional type:
http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//00310000000v000000.htm

For ArcGIS 10, Gaussian Kernels is the most functional approximation type for Normal Score Transformation.
0 Kudos