I have now added a "tile.list" method for "[" so that "tile.list" objects can be sub-setted without losing their class or their "rw" attributes. This is incorporated in version 0.1-8 of deldir which I have just uploaded to CRAN. It should be available for download "soon". cheers, Rolf
Rolf Turner Technical Editor ANZJS Department of Statistics University of Auckland Phone: +64-9-373-7599 ext. 88276 Home phone: +64-9-480-4619