Package: NPBBBdesigns
Type: Package
Title: Construction and a-Efficiency of Nested Partially Balanced
        Bipartite Block Designs
Version: 1.0.0
Authors@R: c(person(given = "Vinayaka", 
         role = c("aut", "cre"), 
         email = "vinayaka.b3vs@gmail.com",
         comment = c(ORCID = "0000-0001-5004-0084")),
  person(given = "Rajender", 
         family = "Parsad", 
         role = c("aut", "ctb")),
  person(given = "B.N.", 
         family = "Mandal", 
         role = c("aut", "ctb")),
  person(given = "L.N.", 
         family = "Vinaykumar", 
         role = c("aut", "ctb")),
  person(given = "Gopalareddy", 
         family = "Krishnappa", 
         role = c("aut", "ctb"), 
         comment = c(ORCID = "0000-0002-8825-6363")))
Maintainer: Vinayaka <vinayaka.b3vs@gmail.com>
Description: Construction and evaluation of nested partially balanced bipartite block (NPBBB) designs for comparing a set of test treatments with a set of control treatments under a nested (blocks within blocks) structure. Six systematic construction methods are provided: composing partially balanced bipartite block designs with nested balanced incomplete block designs; augmenting nested partially balanced incomplete block designs with controls; merging rows of group-divisible nested designs; direct construction from group-divisible schemes; and expansion of partially balanced incomplete block designs (Vinayaka et al. 2026: In press). The A-efficiencies of the block and sub-block classifications are computed against the A-optimal completely symmetric reference design, following the test-versus-control optimality framework of Gupta and Parsad (1996) <doi:10.1080/03610929608831743> and Vinayaka et al. (2024) <doi:10.1080/03610926.2023.2251623>. These designs are particularly suited to agricultural, animal husbandry, industrial, and clinical trials involving multiple standard checks under nested experimental conditions, such as multi-environment trials where field heterogeneity (blocks) and within-field variation (sub-blocks) must be controlled simultaneously.
License: GPL-3
Encoding: UTF-8
Depends: R (>= 3.5.0)
Config/testthat/edition: 3
NeedsCompilation: no
Config/roxygen2/version: 8.0.0
Packaged: 2026-06-28 19:46:19 UTC; DELL
Author: Vinayaka [aut, cre] (ORCID: <https://orcid.org/0000-0001-5004-0084>),
  Rajender Parsad [aut, ctb],
  B.N. Mandal [aut, ctb],
  L.N. Vinaykumar [aut, ctb],
  Gopalareddy Krishnappa [aut, ctb] (ORCID:
    <https://orcid.org/0000-0002-8825-6363>)
Repository: CRAN
Date/Publication: 2026-07-04 07:30:02 UTC
Built: R 4.5.2; ; 2026-07-04 10:50:13 UTC; unix
