Dear All,
I am trying to carry out variogram analysis on geostatistical data using
gstat package of R. after rescaling my spatial coordinates, it ranges as
follows
easting:  min=0 and max=794.256 meters
northing: min= and max=621.8851 meters
the maximum distance between pair of observation is 1008.754 meters.

I have fitted a number of variogram models such as spherical, exponential,
Gaussian, and linear to empirical semivariogram. Besides, I have generated
the interpolation grid for kriging. With this information, I wish to
identify the optimal variogram model and optimal grid size. Please guide me
on how to go about this using the above details. Note that my observation
size is 12,500 records.

Thanks while looking forward to reading from you.
 Moshood

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