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extraBinomial specifications


Unique identifier OMICS_10594
Name extraBinomial
Software type Package/Module
Interface Command line interface
Restrictions to use None
Operating system Unix/Linux, Mac OS, Windows
Programming languages R
License GNU General Public License version 2.0
Computer skills Advanced
Version 2.1
Stability Stable
Maintained Yes


No version available



  • person_outline Chris Wallace

Publication for extraBinomial

extraBinomial citations


Spatial and temporal avoidance of risk within a large carnivore guild

Ecol Evol
PMCID: 5215178
PMID: 28070283
DOI: 10.1002/ece3.2616

[…] tem.Following Zuur, Ieno, and Elphick (), we used quasibinomial generalized linear models fit with the glm function in R to test the relationship for each species pair, in a manner that accounted for extrabinomial variation. We assessed the fit of all models using Q–Q and scale–location plots, which confirmed good fits. Heteroscedasticity was apparent in most cases, but the effect of heteroscedast […]


Experimental evolution reveals high insecticide tolerance in Daphnia inhabiting farmland ponds

Evol Appl
PMCID: 4430768
PMID: 26029258
DOI: 10.1111/eva.12253
call_split See protocol

[…] ombination. We used GLiM with a probit link and assumed binomial error distribution as recommended by McCullagh and Nelder () in the statistical software R (R Development Core Team, ). To account for extrabinomial variation (i.e. overdispersion expressed as the residual deviance being more than 1.5 greater than the degrees of freedom of the residual deviance), we used as model family ‘quasibinomia […]


Associations between primary healthcare and unplanned medical admissions in Norway: a multilevel analysis of the entire elderly population

BMJ Open
PMCID: 3987736
PMID: 24727427
DOI: 10.1136/bmjopen-2013-004293

[…] ndom parameter estimates for the model were calibrated with the penalised quasi-likelihood second order Taylor series expansion routine as implemented within the MLwiN program. Allowance was made for extrabinomial variation at level 1 (the cell level) since proportions may exhibit more or less variation than a binomial distribution. Fixed effect estimates are reported as OR with 95% CI whereas ran […]


Incidence of Thymoma in Myasthenia Gravis: A Systematic Review

PMCID: 3469795
PMID: 23091524
DOI: 10.3988/jcn.2012.8.3.161

[…] onian and Laird (random-effects) method was selected when there was evidence of statistical heterogeneity. The 95% confidence intervals (CIs) of the pooled risk estimates were calculated to allow for extrabinomial variation, because standard methods of calculating 95% CIs produce artificially narrow intervals if there is heterogeneity of risk across the different studies. The heterogeneity of inci […]


Demography of Reintroduced Eastern Bluebirds and Brown Headed Nuthatches

PMCID: 3607246
PMID: 23538326
DOI: 10.2193/2008-009

[…] riation in all rates (ϕtimeptimeγtime). We evaluated support for each model in the reverse-time, capture-recapture analysis using Akaike's Information Criterion, as adjusted for small sample size and extrabinomial variation (QAICc), and the quasi-likelihood-adjusted Akaike weights (wi) for each model in the candidate set.General goodness-of-fit tests for the Pradel survival and seniority models ca […]


Clonal Waves of Neisseria Colonisation and Disease in the African Meningitis Belt: Eight Year Longitudinal Study in Northern Ghana

PLoS Med
PMCID: 1831736
PMID: 17388665
DOI: 10.1371/journal.pmed.0040101
call_split See protocol

[…] rying each bacterium provides a consistent and unbiased estimate of carriage prevalence; however, because of the random sampling of the population, the clustering in the sampling procedure introduced extrabinomial variation, which was allowed for in the estimates of standard errors () by calculating robust (sandwich) estimates [] using Stata version 8.0 (Stata Corporation, http://www.stata.com).Ri […]

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extraBinomial institution(s)
Juvenile Diabetes Research Foundation/Wellcome Trust Diabetes and Inflammation Laboratory, Department of Medical Genetics, Cambridge Institute for Medical Research, University of Cambridge, Wellcome Trust/MRC Building, Addenbrooke’s Hospital, Cambridge, UK

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