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In ArcGIS (10.1), I ran a VIEWSHED analysis using as input observer locations a POINT shapefile with 6 locations. When I open the output RASTER's attribute table, I seen that it contains a number of rows equal to the input locations, and a COUNT field.

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Now, I seem having problem grasping the meaning of the latter field, and the documentation I found seems not clarify my doubt. My best guess is that those values represent the number of cells that are visible from each locations. Am I right, or am I missing something?

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  • Please edit the question to include the exact table contents.
    – Vince
    Mar 22, 2017 at 11:20

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You're correct. The count field is the number of cells with the corresponding value. When I total these counts, I get 440,363. If this doesn't match the total number of pixels that you'd calculate by multiplying rows x columns, then it could be that you have NoData cells which are not shown in the attribute table.

This page confirms that. The documentation is for 10.3, but it's valid for previous versions of ArcGIS too.

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