GS⁺ Variogram Models

GS⁺ provides for variograms 4 types of isotropic models and 4 types of anisotropic models; the isotropic spherical model is shown in this window.  Other models are exponential, linear, and gaussian. Each of these models can be described based on three parameters: the nugget variance, the sill, and the range. GS⁺ calculates default values for each parameter that you can change as you like; as you change them, variogram graphs elsewhere are redrawn on-the-fly to reflect the new fit, and you can compare your fit to the AutoFit calculated by GS⁺.  The models are shown graphically when the Show Models box is checked on the Autocorrelation Analysis Window.