作者：Chen, Hegang H.; Cheng, Ching-Shui
作者单位：University System of Maryland; University of Maryland Baltimore; University of California System; University of California Berkeley
摘要：Given a two-level regular fractional factorial design of resolution IV, the method of doubling produces another design of resolution IV which doubles both the run size and the number of factors of the initial design. On the other hand, the projection of a design of resolution IV onto a subset of factors is of resolution IV or higher. Recent work in the literature of projective geometry essentially determines the structures of all regular designs of resolution IV with n >= N/4 + 1 in terms of d...
