Package: BKQualit Type: Package Title: Analysis of Qualitative Traits, Segregation and Genetic Linkage Version: 0.1.0 Authors@R: person(given = "Praveen Kumar", family = "B. K.", role = c("aut", "cre"), email = "bkpraveenars@gmail.com") Description: A colour-first toolkit for the analysis of qualitative (categorical) traits in plant breeding and genetics. It tests observed segregation against the classical Mendelian expectations, fitting every standard mono-, di- and trihybrid ratio automatically and ranking them by goodness of fit, with Yates continuity correction and Monte Carlo exact tests for sparse tables. It partitions chi-square across families into pooled and heterogeneity components, so that a poor overall fit can be attributed either to the hypothesised ratio or to variation between families. Genetic linkage is estimated by maximum likelihood from two-locus second filial generation and backcross data, with logarithm of odds scores and likelihood-ratio confidence intervals for the recombination fraction. The package further computes Shannon-Weaver and Simpson diversity for descriptor states used in distinctness, uniformity and stability testing, and performs multiple correspondence analysis and Gower-distance clustering of mixed categorical and quantitative descriptors. Every analysis returns a tidy result object and a publication-ready 'ggplot2' figure. Methods follow Mather (1951, ), Allard (1956) and Gower (1971) . License: GPL-3 Encoding: UTF-8 Depends: R (>= 4.0.0) Imports: stats, utils, grDevices, ggplot2 Suggests: ggrepel, patchwork, knitr, rmarkdown, testthat (>= 3.0.0) RoxygenNote: 7.3.1 Config/testthat/edition: 3 URL: https://github.com/bkpraveenars-del/BKQualit BugReports: https://github.com/bkpraveenars-del/BKQualit/issues NeedsCompilation: no Packaged: 2026-10-05 08:24:37 UTC; root Author: Praveen Kumar B. K. [aut, cre] Maintainer: Praveen Kumar B. K. Repository: https://bkpraveenars-del.r-universe.dev Date/Publication: 2026-09-05 05:26:29 UTC RemoteUrl: https://github.com/bkpraveenars-del/bkqualit RemoteRef: HEAD RemoteSha: ab762d0eb1c1925b4eaeb9b825199cd2729b2dc2