Optimize Model?

Discussion created by jlaura on Mar 5, 2012
Latest reply on Mar 6, 2012 by EKrause-esristaff
In the ArcGIS Geostatistical Wizard, what exactly is the optimize model button doing on the covariance / semivariogram page?  I see that is is changing bin size, number of lags, and sill distance.  What exactly is occurring?  Why is it possible to optimize the model multiple times?