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Composite Polygons and Summarize Data for Statistics



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Author Thomas Dilts
File Name Composite Polygons & Summarize Data.zip
Language Geoprocessing Models
Last Modified Oct 20 2009
Status of work Public Domain
Software ArcGIS Desktop
File Size 135.59 kb
Downloads 397

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Summary
The two tools contained in this toolbox work together and replace an older version. The first tool is the composite polygons model, which is similar the combine tool in Spatial Analyst but uses vector data. It should be able to run with an AcrView license. The second tool takes things a step further by using pivot table functionality to prepare a file so that it can be analyzed in statistical software (rows represent sites and columns represent variables). The second tool requires an ArcInfo license. Here are a couple of example applications:

Example 1 - You wish to do some stratified random sampling along two gradients (lets say geology and vegetation) and you want to make sure that you cover the combinations of geology and vegetation.

Example 2 - You have point observations of birds and you want to do a statistical analysis of habitat surrounding the points. By buffering the points and running the composite polygons tool and then the summarize for statistics tool you can determine the amount of each vegetation type within 100 meters of each bird observation point.

The hardwired versions of the tools use C:\Temp as the default location for output and intermediate files while the normal version use the scratch workspace that you designate in the ArcToolbox Environment settings.
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