I use a python script in which the function ZonalStatisticsAsTable is called. In ArcGIS9.3 it all worked fine. Our company just went to ArcGIS 10.1 and now it doesn't work anymore. When looking inside the resulting temporary tables it seemed the name of column number 2 was changed from "VALUE" to "NR". I changed it in the script and it all seemed to work fine. But, the results are very different from these in 9.3.
As input I use a rastermap with cellsize of 1x1km and a Polygon feature. I guess the polygon is converted to a raster first before the comparison is made. Whenever I first use "polygon to raster" to created a raster and use "Zonal Statistics as Table" with these two rasters as input the results are fine.
What goes wrong using then function ZonalStatisticsAsTable in the Pythonscript? Regards, Wilco.