topic Value range changes when using mosaic in ArcGIS Spatial Analyst Questions https://community.esri.com/t5/arcgis-spatial-analyst-questions/value-range-changes-when-using-mosaic/m-p/643322#M9314 <HTML><HEAD></HEAD><BODY><SPAN>When I use the mosaic tool to combine two or more integer (or float) rasters, originally DEM's, the value ranges (elevation) change.&nbsp; For example, one raster has a range of values from 1189 - 1513, the other 1215-1557.&nbsp; I expect the mosaicked raster to range from 1189-1557.&nbsp; But, instead, I get a value range of -32768 to 32767.&nbsp; So, the mosaicked raster is useless to me.</SPAN></BODY></HTML> Mon, 02 Sep 2013 20:40:24 GMT JeffBoyd 2013-09-02T20:40:24Z Value range changes when using mosaic https://community.esri.com/t5/arcgis-spatial-analyst-questions/value-range-changes-when-using-mosaic/m-p/643322#M9314 <HTML><HEAD></HEAD><BODY><SPAN>When I use the mosaic tool to combine two or more integer (or float) rasters, originally DEM's, the value ranges (elevation) change.&nbsp; For example, one raster has a range of values from 1189 - 1513, the other 1215-1557.&nbsp; I expect the mosaicked raster to range from 1189-1557.&nbsp; But, instead, I get a value range of -32768 to 32767.&nbsp; So, the mosaicked raster is useless to me.</SPAN></BODY></HTML> Mon, 02 Sep 2013 20:40:24 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/value-range-changes-when-using-mosaic/m-p/643322#M9314 JeffBoyd 2013-09-02T20:40:24Z Re: Value range changes when using mosaic https://community.esri.com/t5/arcgis-spatial-analyst-questions/value-range-changes-when-using-mosaic/m-p/643323#M9315 <HTML><HEAD></HEAD><BODY><SPAN>Jeff,</SPAN><BR /><SPAN> It sounds like you need to calculate statistics on your resulting raster dataset, to get ArcMap to find the min and max values.</SPAN><BR /><SPAN>Regards,</SPAN><BR /><SPAN>Jim</SPAN></BODY></HTML> Tue, 03 Sep 2013 13:29:28 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/value-range-changes-when-using-mosaic/m-p/643323#M9315 JimCousins 2013-09-03T13:29:28Z Re: Value range changes when using mosaic https://community.esri.com/t5/arcgis-spatial-analyst-questions/value-range-changes-when-using-mosaic/m-p/643324#M9316 <HTML><HEAD></HEAD><BODY><SPAN>Jim,&nbsp; I tried running statistics on both rasters, and got the same result when running mosaic, so my problem hasn't changed.</SPAN><BR /><SPAN>thanks</SPAN><BR /><SPAN>Jeff</SPAN></BODY></HTML> Tue, 03 Sep 2013 17:24:11 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/value-range-changes-when-using-mosaic/m-p/643324#M9316 JeffBoyd 2013-09-03T17:24:11Z Re: Value range changes when using mosaic https://community.esri.com/t5/arcgis-spatial-analyst-questions/value-range-changes-when-using-mosaic/m-p/643325#M9317 <HTML><HEAD></HEAD><BODY><SPAN>Have you run statistics on the mosaic output?</SPAN></BODY></HTML> Tue, 03 Sep 2013 17:40:36 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/value-range-changes-when-using-mosaic/m-p/643325#M9317 JimCousins 2013-09-03T17:40:36Z