Diversity               Spatial Structural Diversity Metrics
DiversityDom            Spatial Structural Diversity Metrics
getValuesWindow         Retrieve pixel values of a defined area.  The
                        area is defined by the size of a window, which
                        is centered on one pixel.
ndvi                    NDVI
ndvi.15gl               NDVI, 15 gray levels
patch                   simulated patch data
strucDiv                Quantify Spatial Structural Diversity in an
                        Arbitrary Raster Layer
strucDivDom             Returns the structural diversity value, the
                        gray level co-occurrence matrix (GLCM) and the
                        structural diversity matrix of the domain.
strucDivNest            Quantify Spatial Structural Diversity Across
                        Scales in an Arbitrary Raster Layer
