trivial bug fix

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/diseasemapping@705 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
put anisotropy back in tests

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/diseasemapping@706 edb9625f-4e0d-4859-8d74-9fd3b1da38cb