I wanna compute the Omnidirectional Variogram model for a Cartesian grid in SGEMS, but I don't know how to fix the parameter for Cartesian grid. I will be thankful if you help me.
There is a tutorial file where you can see an example on how the omnidirectional variogram model was computed. The file is in PDF file format and it's available for downloading through the link posted below.
I've searched through the PDF and there is variogram data and model information.