Recap

In the previous sessions on GIS, the main topics we discussed were:

• What is a GIS? What are its uses?
• An early example of spatial analysis, and its practical use: John Snow’s cholera map
• Types of spatial data: This webpage very nicely summarizes the discussion we had.
• Uses of GIS:

• A post on some types of spatial analysis made possible by a GIS
• 67 uses of GIS for the true GIS enthusiast :P

Related - Spatial analysis in randomized settings - why is it important?

• An interesting paper on this topic can be found here.
• Related Concepts (Source: GIS Dictionary ) :

• Spatial Autocorrelation: A measure of the degree to which a set of spatial features and their associated data values tend to be clustered together in space (positive spatial autocorrelation) or dispersed (negative spatial autocorrelation).
• Tobler’s First Law of Geography: A formulation of the concept of spatial autocorrelation by the geographer Waldo Tobler (1930-), which states “Everything is related to everything else, but near things are more related than distant things.”