I'm using adehabitatHR package in R to estimate homeranges of wild mice from spatial point data. I'm estimating homerange overlap using kerneloverlap() function with method= "VI" , to weight the overlap with both individuals utilization distribution (UD). However, my study grid has edges and some hoe ranges are partially outside of the grid, making it impossible to reliably estimnate their area, but to some extent, I think I could still use them in the data, if the overlapping area between two homeranges is still within the grid. Does anyone know of a way of measuring edginess (e.g. proportion distribution near the edge) within the overlapping area of two UDs?