Then select Categories > Unique Values and select SUB_REGION from the Value field. This will bring up the Layer Properties dialog box.Ĭlick on the "Symbology" tab. Double click on the states layer (or right-click on it and select "Properties"). ![]() Add the states shapefile as a layer by clicking File > Add Data and selecting the relevant file (i.e. Mapping Categorical Dataįirst, we will create a choropleth map which shades the states according to which sub-region they lie in (e.g., Pacific, New England, Mid Atlantic, etc.). After saving the zip archive to a local working folder and unzip its content, start ArcMap. ![]() This method example will make use of a polygons shapefile containing the boundaries and population data of the States in the USA called states.zip.
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