I am struggling to work out how I can assign weights to my points (airports), So far I have carried out a Near fuction so that all of my raster (output areas ) are assigned a point with its distance ...
I have a set of points and I'd like to be able to find the nearest point from another layer. The problem is that I need to find the closest point without crossing an obstacle (such as a river, ...
In the map below I have 66 (green) points along the midpoint (0.5) for an allele frequency cline across the region (see map). I created the points by placing a point every 25 km along the 0.5 allele ...