# NPBBBdesigns 1.0.0

* First release.
* Six construction methods for nested partially balanced bipartite block
  (NPBBB) designs: `construct_method1` to `construct_method6`.
* Exact A-efficiency evaluation for the block and sub-block classifications
  via `info_matrix`, `a_value`, `a_value_optimal` and `npbbb_efficiency`,
  benchmarked against the A-optimal completely symmetric reference design.
* `print` methods for the `"npbbb"` and `"npbbb_efficiency"` classes, including
  a full physical block / sub-block layout.
* `n_units` helper for the total number of experimental units.
