The Fractal Analysis window is used to set up the parameters for fractal analysis and then calculate the fractal dimension D for the data set defined in the Data Definition Menu. GS+ calculates the fractal dimension D as a function of the slope of a log-log variogram plot (Burrough 1981, 1986 ):
Because D is based on an analysis of semivariance, it is sensitive to the same analysis parameters that affect semivariance analysis.
Fractal variograms (both isotropic and anisotropic) appear in the Autocorrelation Window, on the Fractal tab. Pressing the Expand button on this tab brings up the Fractal window:
The Cloud/Scatter, right-click menu, and other commands work here as they do for the Variograms Window.