blocksdesign: Nested Block Designs for Unstructured Treatments
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 any existing higher-level
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.
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