This animation depicts how Bação's GeoSOM application can be integrated with regionalization via transposing a u-matrix onto a map. Click the button below for more on GeoSOM.
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Stay tuned for step by step description on how to carry out regionalization with SOM or explore the scripts yourself (posted at the bottom of this page).
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Figure 1 A) GeoSOM nodes. B-C) Thiessen polygons built around each node.
Figure 2. A) Thiessen polygons each assigned the u-mat value of the node that falls within it. B) Thiessen polygons projected onto a map of the Minneapolis metro area. C) U-matrix values transposed onto the map surface by assigning the u-matrix value of the Thiessen polygon to the block group whose centroid falls within it. D) Final u-matrix map at the block group level.
SOM2Map.R is a R script that processes GeoSOM output into a shapefile that can be used as input for various regionalization procedures.
MSOM is a regionalization procedure that relies on Max P Regions ClusterPy (Duque, Dev, Betancourt, & Franco, 2011) to create partitions based on SOM u-matrix values.
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