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NPBBBdesigns

1.0.0Package record

Construction and a-Efficiency of Nested Partially Balanced Bipartite Block Designs

0packages depend
515downloads / year
–test coverage
13/13flavors OK

Overview

About
Maintained by VinayakaCRAN page ↗

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.

Changes in 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.

From NEWS.md in the release

Install

Health

CRAN checks
13OK
Slowest check: 1.0 min · r-oldrel-windows-x86_64
Status changes
  • OK13 OK2026-09-08
  • ERROR12 OK, 1 ERROR2026-09-07
  • OK13 OK2026-08-05
  • NOTE12 OK, 1 NOTE2026-08-01
  • OK7 OK2026-07-05
Advisories

none known

Documentation

In release 1.0.0
READMEYes · 499 wordsVignettesNoNEWSYes · 67% structured · mentions 1.0.0Citation fileNoWebsitenot declared in DESCRIPTION
Help pages
13
Examples that run
100%13 run in a plain check
Exported functions with examples
100%
Documented parameters
100%
Return-value docs
100%
Help pages citing references
77%

Downloads

515
CRAN downloads in the past year
Rank #25,259 · ~1/day · ~43/mo
Daily download trend is not available in this view yet.
12530 days
38290 days
5151 year
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Also on21 r2u2 autocran

Dependencies

Declared dependencies
0 external dependencies (excludes base and recommended)

Installing NPBBBdesigns adds no packages beyond those that come with R.

Depends (1)
R >= 3.5.0
Imports (0)
none
LinkingTo (0)
none
Suggests (0)
none
Enhances (0)
none
Reverse dependencies
0direct
0indirect

Nothing depends on this yet.

People & History

People (5)
Author, Maintainer since 1.0.0 (2026)
Author, Contributor
Author, Contributor
Author, Contributor
Author, Contributor
Releases (1)
  • 1.0.0Latest
    2026-07-04 · current release
  • R
    R 4.6.0 released · 2026-04-24

Package metadata

First published
2026-07-04
Total releases
1 / 1 yrs
License
GPL-3 OSI
Minimum R
≥ 3.5.0
Download size
15 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("NPBBBdesigns")
Vinayaka, Krishnappa, G., Mandal, B. N., Parsad, R., & Vinaykumar, L. N. (2026). NPBBBdesigns: Construction and a-Efficiency of Nested Partially Balanced Bipartite Block Designs (Version 1.0.0) [Computer software]. https://doi.org/10.32614/CRAN.package.NPBBBdesigns

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

APA

Balamuta, J. J. (2026). R Observatory: Metrics for NPBBBdesigns version 1.0.0 [Data set]. HJJB, LLC. Data release v2026-10-25. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-25, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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