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I'm having trouble averaging 12 rasters in the raster calculator. I keep getting a 000539 error, which I assume means that the syntax in the equation is bad. The problem is I dont know whats wrong with the syntax or how to remedy it. Any help/suggestions would be greatly appreciated.

fyi. the equation I enter is ("raster 1" + "raster 2" + ... "raster 12") / (12)

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closed as unclear what you're asking by PolyGeo, BradHards, Fezter, Curlew, whuber Jan 31 '14 at 4:02

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question.If this question can be reworded to fit the rules in the help center, please edit the question.

What happens when you simplify the expression to ("raster 1" + "raster 2")/(12) or even to ("raster 1")/(1)? – whuber Jan 18 '13 at 19:30
Let me try and I will get back to you with the answer – user14385 Jan 18 '13 at 20:32
@Jonathan Schmitt - you can edit your question, post a comment here or post a comment to an answer. but you shouldn't post a comment as an answer. Also, I'll be right back is not neccessary. – Brad Nesom Jan 18 '13 at 21:01