R (>= 2.10.0), ade4, tkrplot, shapefiles
R (>= 2.10.0), ade4, tkrplot, shapefiles, sp
R (>= 2.10.0), ade4, tkrplot, shapefiles, sp, graphics
gpclib, sp, spatstat, MASS, tkrplot, shapefiles
gpclib, sp, spatstat, MASS, tkrplot, shapefiles, CircStats