Abstract
An incomplete-block design defines both a concurrence graph and a Levi graph.
Properties of either graph can be used to compare designs with respect to D-optimality and with respect to A-optimality. In this paper we show that optimality of the design implies strong conditions on connectivity properties of the graph, and use this to classify the optimal designs when the number of observational units is close to minimal.
Properties of either graph can be used to compare designs with respect to D-optimality and with respect to A-optimality. In this paper we show that optimality of the design implies strong conditions on connectivity properties of the graph, and use this to classify the optimal designs when the number of observational units is close to minimal.
Original language | English |
---|---|
Article number | 84 |
Number of pages | 28 |
Journal | Journal of Statistical Theory and Practice |
Volume | 15 |
Issue number | 4 |
Early online date | 8 Nov 2021 |
DOIs | |
Publication status | Published - Dec 2021 |
Keywords
- Block design
- A-optimality
- D-optimality
- Concurrence graph
- Levi graph