I have three rasters that have been reclassified into 5 classes each. I would like to use decision tree analysis, using the classes in the 3 rasters to come up with a final raster that has 5 classes, developed by using the classes in the 3 rasters as criteria.

How can I go about this?

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  • Don't know about arcmap, but if you have access to R, you can use CART library to use binary trees and the raster and rgdal libraries to load and manipulate raster data. – dof1985 Jul 25 '16 at 8:21
  • Thanks. The problem is that am not familiar with R. – Patrick Odima Jul 25 '16 at 8:54
  • Use combine, it will give you unique combinations of all three that you can reclassify into five groups – FelixIP Jul 25 '16 at 9:47
  • Can you add more info to your question? It is not clear whether you already have a decision tree model and would like to implement it in ArcMap to process your rasterm or whether you are looking for ArcMap to build the tree for you. – PhilippNagel Jul 25 '16 at 13:48

Check out the 3rd party Marine Geospatial Ecology Tools for ArcGIS. It will perform CART and also has a tool for creating a raster from a decision tree.

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