topic Re: Imperious Surfaces in ArcGIS Online Questions https://community.esri.com/t5/arcgis-online-questions/imperious-surfaces/m-p/662989#M33077 <HTML><HEAD></HEAD><BODY><P>Not sophisticated, but I would <A href="http://desktop.arcgis.com/en/arcmap/10.3/map/working-with-layers/using-select-by-location.htm">select by Location,</A> then sort the 0s and 1s by having the attribute list in descending order and then do a few seconds of math to find the numbers. </P></BODY></HTML> Mon, 13 Nov 2017 21:54:35 GMT MeganMcClain 2017-11-13T21:54:35Z Imperious Surfaces https://community.esri.com/t5/arcgis-online-questions/imperious-surfaces/m-p/662988#M33076 <HTML><HEAD></HEAD><BODY><P>So I'm fairly new to GIS. I had a raster of impervious vs pervious surfaces and I converted it to polygons. Even though the brown is all the same color, the individual polygons have a grid code value of either 0 or 1 (impervious or pervious surface). I was wondering if it is possible to find the ratio/percentage of 0 to 1s within my watershed (the highlighted blue line). Any feedback would be much appreciated. Thanks.</P><P></P><P><IMG alt="" class="image-1 jive-image j-img-original" src="https://community.esri.com/legacyfs/online/383432_RWPPonds.png" style="width: 620px; height: 348px;" /></P></BODY></HTML> Mon, 13 Nov 2017 17:58:12 GMT https://community.esri.com/t5/arcgis-online-questions/imperious-surfaces/m-p/662988#M33076 DanielMannetti 2017-11-13T17:58:12Z Re: Imperious Surfaces https://community.esri.com/t5/arcgis-online-questions/imperious-surfaces/m-p/662989#M33077 <HTML><HEAD></HEAD><BODY><P>Not sophisticated, but I would <A href="http://desktop.arcgis.com/en/arcmap/10.3/map/working-with-layers/using-select-by-location.htm">select by Location,</A> then sort the 0s and 1s by having the attribute list in descending order and then do a few seconds of math to find the numbers. </P></BODY></HTML> Mon, 13 Nov 2017 21:54:35 GMT https://community.esri.com/t5/arcgis-online-questions/imperious-surfaces/m-p/662989#M33077 MeganMcClain 2017-11-13T21:54:35Z