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FAQ: Why is there an option for trend order when using universal kriging when the universal kriging model should trend internally?

Question

Why is there an option for trend order when using universal kriging when the universal kriging model should trend internally?

Answer

Since universal kriging models trend, if the 'Order of Trend' is selected in the Geostatistical Method Selection tab in conjunction with universal kriging, Geostatistical Analyst uses a formula to estimate the mu(s), up to a third order polynomial, for the universal kriging function and uses different coefficients for each point where a prediction is made.