Keeping it simple should be the principle #1 for any spatial analysis including SWARS. There is no reason to be overly concerned about how many value classes you should have for an input layer or if you should assign weight 28 vs. 25 to it.
Keep it simple, really simple. Generate some results first so you can see what you could get. It's always easy to go back and fine-tune your process in this digital age.
Many decisions need to be made during the SWARS process. For most of them, however, there is no "THE" right decision:
- Which input layers to use, 12 layers or 15 layers?
- Which layers are more important than others?
- Exactly what weight should be assigned to a layer?
- How many value classes should a layer have and what are the values?
- How should be final overlay result be classified?
More Than One "Right" Choice of Technique
One "funny" thing about today's "advanced" software is that they often times offer "too many" choices. Many don't realize that the same result can be achieved using seemingly "different" tools. A great example here: Single Output Map Algebra vs. Weighted Overlay!
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test comments function. seems to be simple enough.
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