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ibdsegments: Identity by Descent Probability in Pedigrees

Identity by Descent (IBD) distributions in pedigrees. A Hidden Markov Model is used to compute identity coefficients, simulate IBD segments and to derive the distribution of total IBD sharing and segment count across chromosomes. The methods are applied in Kruijver (2025) <doi:10.3390/genes16050492>. The probability that the total IBD sharing is zero can be computed using the method of Donnelly (1983) <doi:10.1016/0040-5809(83)90004-7>.

Version: 1.0.1
Imports: Rcpp, pedtools, expm
LinkingTo: Rcpp
Suggests: testthat (≥ 3.0.0), ribd, ggplot2
Published: 2025-05-02
DOI: 10.32614/CRAN.package.ibdsegments
Author: Maarten Kruijver ORCID iD [aut, cre]
Maintainer: Maarten Kruijver <maarten.kruijver at esr.cri.nz>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: yes
Materials: README NEWS
CRAN checks: ibdsegments results

Documentation:

Reference manual: ibdsegments.pdf

Downloads:

Package source: ibdsegments_1.0.1.tar.gz
Windows binaries: r-devel: ibdsegments_1.0.1.zip, r-release: ibdsegments_1.0.1.zip, r-oldrel: ibdsegments_1.0.1.zip
macOS binaries: r-release (arm64): ibdsegments_1.0.1.tgz, r-oldrel (arm64): ibdsegments_1.0.1.tgz, r-release (x86_64): ibdsegments_1.0.1.tgz, r-oldrel (x86_64): ibdsegments_1.0.1.tgz

Linking:

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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.