asartain

weighted mean of a raster?

Discussion created by asartain on Nov 4, 2011
Latest reply on Nov 4, 2011 by erice-esristaff
I have a raster dataset of water depths and am trying to find the mean depth within a polygon. I know to use the Zonal Statistics, and that works. But, my polygon is a blob shape resulting in some cells being completely inside, while others are just barely inside.

My question is whether the Zonal Statistics takes this into account. Is the mean it gives me weighted based on how much of certain cells are within the polygon? Or is every cell that overlaps with the polygon (even if just a small corner) weighed the same in the calculation?

Thanks!

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