topic Re: Calculate fragmentation for areas in hectare grid in Spatial Statistics Questions https://community.esri.com/t5/spatial-statistics-questions/calculate-fragmentation-for-areas-in-hectare-grid/m-p/326746#M1080 <HTML><HEAD></HEAD><BODY><SPAN>Ben,</SPAN><BR /><SPAN> Have a look at zonal statistics tools and see if they will get you what you want.</SPAN><BR /><SPAN>Regards,</SPAN><BR /><SPAN>Jim</SPAN></BODY></HTML> Tue, 27 May 2014 13:01:16 GMT JimCousins 2014-05-27T13:01:16Z Calculate fragmentation for areas in hectare grid https://community.esri.com/t5/spatial-statistics-questions/calculate-fragmentation-for-areas-in-hectare-grid/m-p/326745#M1079 <HTML><HEAD></HEAD><BODY><SPAN>I have a shapefile showing distribution of saltmarsh areas. It contains only one class. </SPAN><BR /><SPAN>I want to be able to effectively overlay a 1Ha grid and calculate statistics for each cell in that grid. I'm principally interested in a metric of fragmentation, but something as simple as a ratio of total area to total perimeter within the hectare cell would probably suffice in the first instance. </SPAN><BR /><BR /><SPAN>I've used the grids and graticules tool to overlay a hectare grid, and intersected it with the saltmarsh layer but I'm now wondering where to go. I could export the attributes table of the resulting layer and deal with it externally, but I was hoping someone might be able to point me at how to do it withing Arc.</SPAN></BODY></HTML> Sat, 24 May 2014 15:17:11 GMT https://community.esri.com/t5/spatial-statistics-questions/calculate-fragmentation-for-areas-in-hectare-grid/m-p/326745#M1079 BenEvans 2014-05-24T15:17:11Z Re: Calculate fragmentation for areas in hectare grid https://community.esri.com/t5/spatial-statistics-questions/calculate-fragmentation-for-areas-in-hectare-grid/m-p/326746#M1080 <HTML><HEAD></HEAD><BODY><SPAN>Ben,</SPAN><BR /><SPAN> Have a look at zonal statistics tools and see if they will get you what you want.</SPAN><BR /><SPAN>Regards,</SPAN><BR /><SPAN>Jim</SPAN></BODY></HTML> Tue, 27 May 2014 13:01:16 GMT https://community.esri.com/t5/spatial-statistics-questions/calculate-fragmentation-for-areas-in-hectare-grid/m-p/326746#M1080 JimCousins 2014-05-27T13:01:16Z