Wednesday, February 27, 2019

how to increase the number of unique values in ArcMap raster tables

Recently I've been encountering problems where some geoprocessing tools in ArcGIS have failed to run due to requiring too many values in the attribute table.  I came across this interesting article that I thought that I'd share.  The most interesting aspect of this is that it doesn't only pertain to viewing rasters as the summary might imply.  It is actually a critical step for getting certain tools to run.  The Combine tool in Spatial Analyst is just one tool that can benefit from increasing the number of allowed unique values.  https://support.esri.com/en/technical-article/000010117