Finds upper A-efficiency bounds for regular block designs.
Usage
upper_bounds(nplots, ntrts, nblocks)
Arguments
nplots
the total number of plots in the design.
ntrts
the total number of treatments in the design.
nblocks
the total number of blocks in the design.
Details
Upper bounds for the A-efficiency factors of regular nested block designs
(see Chapter 2.8 of John and Williams 1995). Non-trivial bounds
are calculated for regular block designs with equal block sizes
and equal replication. All other designs return NA.
References
John, J. A. and Williams, E. R. (1995). Cyclic and Computer Generated Designs. Chapman and Hall, London.