topic Re: Agregate (generalizing thematic raster data) – Spatial Analyst in ArcGIS Mapping and Charting Questions https://community.esri.com/t5/arcgis-mapping-and-charting-questions/agregate-generalizing-thematic-raster-data-spatial/m-p/99691#M334 <HTML><HEAD></HEAD><BODY><P>The Aggregate tool is used for continuous data and not for thematic data. If you have a class with value 3 next to a class with value 5 the mean would result class 4, which probably does not have any relation to what you want to obtain. The result is probably a floating raster that will not have an attribute table.</P><P></P><P>Alternative processes are described here for thematic data:</P><P><A href="http://desktop.arcgis.com/en/desktop/latest/tools/spatial-analyst-toolbox/generalization-of-classified-raster-imagery.htm" title="http://desktop.arcgis.com/en/desktop/latest/tools/spatial-analyst-toolbox/generalization-of-classified-raster-imagery.htm">Generalization of classified raster imagery—Help | ArcGIS for Desktop</A> </P></BODY></HTML> Wed, 05 Aug 2015 13:42:40 GMT XanderBakker 2015-08-05T13:42:40Z Agregate (generalizing thematic raster data) – Spatial Analyst https://community.esri.com/t5/arcgis-mapping-and-charting-questions/agregate-generalizing-thematic-raster-data-spatial/m-p/99690#M333 <HTML><HEAD></HEAD><BODY><P>Good morning, </P><P>I would like to use landform raster data from Global Ecological Land Units dataset from USGS and ESRI but the original data are very too big. That's way I used Agregate tool from Spatial Analyst toolbox. The output data are smaller but <STRONG>the field with information about types of landform is missing</STRONG> – it was not transferred from original (input) raster dataset.<BR />Why? Where is the problem?</P><P></P><P>Thank you very much!<BR />Jan Klasa</P></BODY></HTML> Wed, 05 Aug 2015 13:33:08 GMT https://community.esri.com/t5/arcgis-mapping-and-charting-questions/agregate-generalizing-thematic-raster-data-spatial/m-p/99690#M333 JanKlasa 2015-08-05T13:33:08Z Re: Agregate (generalizing thematic raster data) – Spatial Analyst https://community.esri.com/t5/arcgis-mapping-and-charting-questions/agregate-generalizing-thematic-raster-data-spatial/m-p/99691#M334 <HTML><HEAD></HEAD><BODY><P>The Aggregate tool is used for continuous data and not for thematic data. If you have a class with value 3 next to a class with value 5 the mean would result class 4, which probably does not have any relation to what you want to obtain. The result is probably a floating raster that will not have an attribute table.</P><P></P><P>Alternative processes are described here for thematic data:</P><P><A href="http://desktop.arcgis.com/en/desktop/latest/tools/spatial-analyst-toolbox/generalization-of-classified-raster-imagery.htm" title="http://desktop.arcgis.com/en/desktop/latest/tools/spatial-analyst-toolbox/generalization-of-classified-raster-imagery.htm">Generalization of classified raster imagery—Help | ArcGIS for Desktop</A> </P></BODY></HTML> Wed, 05 Aug 2015 13:42:40 GMT https://community.esri.com/t5/arcgis-mapping-and-charting-questions/agregate-generalizing-thematic-raster-data-spatial/m-p/99691#M334 XanderBakker 2015-08-05T13:42:40Z