Etna_boundary           Dataset: bounding polygon representing a study
                        area on Mount Etna (Sicily, Italy)
Etna_end_location       Dataset: locations on Mount Etna (Sicily,
                        Italy)
Etna_start_location     Dataset: location on Mount Etna (Sicily, Italy)
destin.loc              Dataset: locations on the volcano Maunga Whau
                        (Auckland, New Zealand)
malta_dtm_40            Dataset: Malta DTM (40m cell size)
movealloc               R function for calculating slope-dependant
                        walking-cost allocation to origins
movebound               R function for calculating slope-dependant
                        walking cost boundary(ies) around point
                        location(s)
movecomp                R function for comparing least-cost paths
                        generated using different cost functions
movecorr                R function for calculating least-cost corridor
                        between point locations
movecost                R function for calculating accumulated
                        anisotropic slope-dependant cost of movement
                        across the terrain and least-cost paths from a
                        point origin
movenetw                R function for calculating least-cost path
                        network
moverank                R function for calculating sub-optimal
                        least-cost paths bewteen an origin and a
                        destination location
springs                 Dataset: location of springs in Malta
volc                    Dataset: raster dataset representing the
                        elevation of the volcano Maunga Whau (Auckland,
                        New Zealand)
volc.loc                Dataset: location on the volcano Maunga Whau
                        (Auckland, New Zealand)
