GammaModel: GammaModel
In UCL/GammaModel: Modelling age-at-death profiles using the Gamma distribution
Description
Details
References
Description
Tools to model count data in discrete classes using the Gamma distribution
Details
Package to analyse age-at-death count data across discrete age classes.
Inferential tools where there are large uncertainties from a) small sample sizes, and b) multi-class assignments. Therefore typically applicable to Archaeological data.
Calculates the exact probability of observed data given either a Gamma model or an age-class model. Therefore unsuitable for data with large sample sizes in multi- class assignments, since all possible combinations are computed.
MLE (under either model) found using DEoptimR search algorithm.
Likelihood distribution (under Gamma model) found using MCMC Metropolis-Hastings algorithm.
Performs Goodness of Fit tests, and model comparison using AIC and BIC.
References
'Modelling caprine age-at-death profiles using the Gamma distribution' by Adrian Timpson, Rosalind E. Gillis, Katie Manning and Mark G. Thomas, published in Journal of Archaeological Science 2018
UCL/GammaModel documentation built on June 25, 2020, 5:38 a.m.
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Description Details References
Description
Tools to model count data in discrete classes using the Gamma distribution
Details
Package to analyse age-at-death count data across discrete age classes.
Inferential tools where there are large uncertainties from a) small sample sizes, and b) multi-class assignments. Therefore typically applicable to Archaeological data.
Calculates the exact probability of observed data given either a Gamma model or an age-class model. Therefore unsuitable for data with large sample sizes in multi- class assignments, since all possible combinations are computed.
MLE (under either model) found using DEoptimR search algorithm.
Likelihood distribution (under Gamma model) found using MCMC Metropolis-Hastings algorithm.
Performs Goodness of Fit tests, and model comparison using AIC and BIC.
References
'Modelling caprine age-at-death profiles using the Gamma distribution' by Adrian Timpson, Rosalind E. Gillis, Katie Manning and Mark G. Thomas, published in Journal of Archaeological Science 2018
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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