topic CMaking a map of the average point spacing in Spatial Statistics Questions https://community.esri.com/t5/spatial-statistics-questions/cmaking-a-map-of-the-average-point-spacing/m-p/585949#M1886 <HTML><HEAD></HEAD><BODY><SPAN>Dear all,</SPAN><BR /><BR /><SPAN>I have a set of point data with x, y, z coordinates (projected to UTM) as a feature class in Arcmap.</SPAN><BR /><SPAN>I want to calculate the distance of each point to its 3 nearest neighbours in order to calculate for each point what the average distance to its 3 nearest neigbours is. This to eventually make a raster from these averages to create a map displaying the average space between the points. Any suggestions on which tools to use for this kind of calculation? I have access to the spacial analyst and 3d spatial analyst extensions.</SPAN><BR /><BR /><SPAN>In a related study i saw a map of average point spacing being made using Delaunay Triangulation to calculate the average distance between the points, then the average of the distances of the 3 sides of each triangle were plotted in the center of the triangle and then made into a raster in order to make an average point spacing map. I found a way to generate a spatial weight matrix using the Delaunay Triangulation to conceptualize the spatial relationship but i have no idea how i can use this matrix to plot a raster showing the average spacing between the points.</SPAN><BR /><BR /><SPAN>Any help would be very much appreciated!</SPAN><BR /><BR /><SPAN>Best Wishes,</SPAN><BR /><SPAN>Tim</SPAN></BODY></HTML> Tue, 25 Mar 2014 17:31:20 GMT TimCollart 2014-03-25T17:31:20Z CMaking a map of the average point spacing https://community.esri.com/t5/spatial-statistics-questions/cmaking-a-map-of-the-average-point-spacing/m-p/585949#M1886 <HTML><HEAD></HEAD><BODY><SPAN>Dear all,</SPAN><BR /><BR /><SPAN>I have a set of point data with x, y, z coordinates (projected to UTM) as a feature class in Arcmap.</SPAN><BR /><SPAN>I want to calculate the distance of each point to its 3 nearest neighbours in order to calculate for each point what the average distance to its 3 nearest neigbours is. This to eventually make a raster from these averages to create a map displaying the average space between the points. Any suggestions on which tools to use for this kind of calculation? I have access to the spacial analyst and 3d spatial analyst extensions.</SPAN><BR /><BR /><SPAN>In a related study i saw a map of average point spacing being made using Delaunay Triangulation to calculate the average distance between the points, then the average of the distances of the 3 sides of each triangle were plotted in the center of the triangle and then made into a raster in order to make an average point spacing map. I found a way to generate a spatial weight matrix using the Delaunay Triangulation to conceptualize the spatial relationship but i have no idea how i can use this matrix to plot a raster showing the average spacing between the points.</SPAN><BR /><BR /><SPAN>Any help would be very much appreciated!</SPAN><BR /><BR /><SPAN>Best Wishes,</SPAN><BR /><SPAN>Tim</SPAN></BODY></HTML> Tue, 25 Mar 2014 17:31:20 GMT https://community.esri.com/t5/spatial-statistics-questions/cmaking-a-map-of-the-average-point-spacing/m-p/585949#M1886 TimCollart 2014-03-25T17:31:20Z