Polynomial Trend Surface Analysis

Trend Surface Analysis of Matrix Data

  • The analysis output includes the calculated trend grid, the residuals grid, ANOVA report for significance of regression of Kth-order polynomial trend surface, and XYZ estimates and errors.
Graphical Example

A Graphical Example of Applying Trend Surface Analysis to Matrix Data

(a)

Contour of Matrix Data

(b)

6th-order Trend Generated From Matrix Data

  • (a) A contour plot of a matrix dataset.
  • (b) A contour plot of 6th-order trend generated from the original matrix data in (a).

    6th-order Trend Generated From Matrix Data

    A plot of the residuals, i.e., deviations from the 6th-order trend in (b)