| Article ID | Journal | Published Year | Pages | File Type | 
|---|---|---|---|---|
| 1148671 | Journal of Statistical Planning and Inference | 2007 | 11 Pages | 
Abstract
												When the necessary conditions for a BIBD are satisfied, but no BIBD exists, there is no simple answer for the optimal design problem. This paper identifies the E-optimal information matrices for any such irregular BIBD setting when the number of treatments is no larger than 100. A- and D-optimal designs are typically not E-optimal. An E-optimal design for 15 treatments in 21 blocks of size 5 is found.
											Related Topics
												
													Physical Sciences and Engineering
													Mathematics
													Applied Mathematics
												
											Authors
												J.P. Morgan, Brian Reck, 
											