I have clipped buffer area around coordinate from one big raster (forest cover). Such created raster was loaded in
PatchStat function (library
SDMTools) gives fragmentation index.
After detailed look of such created raster I noticed that I have equal classification for non-forest area (0) and corners (also 0).
My question is whether such surplus of empty area make an influence on the value of fragmentation index. I think solution bellow may be helpful, but I do not know how to do it.