Cokriging equation

Discussion created by caroline_qi on Sep 21, 2011
Latest reply on Mar 10, 2015 by RossPaulMartin
Could someone tell me what is the Arcgis cokriging equation? I can only find the simple equation which is:
Z1(s) = µ1 + ε1(s)
Z2(s) = µ2 + ε2(s)

When I use SAS to do the cokriging analysis, it's more accurate than using Arcgis. So I want to compare the difference between each equation.

Many thanks,