Kriging Problem!

Discussion created by dingding729 on Apr 30, 2011
Latest reply on May 31, 2011 by EKrause-esristaff
I used the same rainfall data to do ordinary kriging in arcmap 9.3 and arcmap10.
In arcmap 9.3, the default parameters give a better predition map than the optimized parameters in arcmap10.
Does anyone know why this happens?