Grid-Based Map Analysis
	Surface modeling maps the spatial distribution and pattern of point data… ü  Map Generalization— characterizes spatial trends (e.g., titled plane) ü  Spatial Interpolation— deriving spatial distribution (e.g., IDW, Krig) ü  Other— roving window (e.g., density surface; tessellation)
	Spatial statistics investigates the “numerical” relationships in mapped data… ü  Descriptive— aggregate statistics (e.g., average/stdev, similarity, clustering) ü  Predictive— relationships among maps (e.g., regression) ü  Prescriptive— appropriate actions (e.g., optimization)