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You can use a Python numpy array and a .sum() operation to sum all of the floating point values in the array. ArcGIS has an easy interface to convert raster data to a numpy array by using RasterToNumPyArray (arcpy) # Import the arcpy site package import arcpy, numpy # Your input floating point raster raster = r'C:\temp\floating_point_raster.tif' # Convert ...


I haven't got ArcGIS to hand right now, but if you right click, select properties, and look under the general or source tab it might have a sum description, let me know if this doesn't help and I will look further. Gary


As I could see, you could crossreferene osm data with терсон names. For instance: Верхнеколымский улус from http://std.gmcrosstata.ru matches with http://atd.osm.rambler.ru/r1399830.html and there are OSM Relation/Way ids for nested territories. That's the id of Верхнеколымский улус http://www.openstreetmap.org/relation/1399830 (you could find it on list ...


Understanding "average" to be the arithmetic mean, recall this is a ratio of two sums: the numerator is the sum of values from the other "data layer" and the denominator is a sum of ones (one per cell). Because Flow accumulation performs the summation, all you have to do is compute a Flow accumulation of the layer, compute another Flow accumulation of a 0-1 ...

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