blocksdesign (version 1.5)
Nested Block Designs for Unstructured Treatments
Description
Nested block designs for unstructured treatment sets where blocks
can be repeatedly nested and treatments can have different levels of
replication. Blocks are optimized hierarchically from the top down with each set of
nested blocks optimized within the levels of the preceding set of blocks. Block sizes
are equal if the number of blocks exactly divides the number of plots,
otherwise they differ by at most one plot. The design output is a data
table giving a randomised allocation of treatments to blocks together with
a plan table showing treatments in blocks and a set of blocks-by-treatments
incidence matrices, one for each blocks stratum.