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arXiv 1809.09014q-bio.PE
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多变量系统发育比较方法的快速似然估计:PCMBase R软件包

Fast likelihood evaluation for multivariate phylogenetic comparative methods: the PCMBase R package

Venelin Mitov, Krzysztof Bartoszek, Georgios Asimomitis, Tanja Stadler

摘要:

我们介绍了一个R包,PCMBase,快速计算的可能性多变量系统发育比较方法。该软件包并不特定于特定的模型,但为用户提供了非常容易实现各种模型的功能,其中沿分支的过渡是多元正态的。我们证明了现在的标准,多特征的Ornstein-Uhlenbeck过程,以及新的多元间断平衡模型包的可能性。该软件包可以处理各种类型的树(例如超度量、非超度量、多分支等),以及测量误差、缺失测量或树中某些物种的不存在的特征。

英文摘要:

We introduce an R package, PCMBase, to rapidly calculate the likelihood for multivariate phylogenetic comparative methods. The package is not specific to particular models but offers the user the functionality to very easily implement a wide range of models where the transition along a branch is multivariate normal. We demonstrate the package's possibilities on the now standard, multitrait Ornstein-Uhlenbeck process as well as the novel multivariate punctuated equilibrium model. The package can handle trees of various types (e.g. ultrametric, nonultrametric, polytomies, e.t.c.), as well as measurement error, missing measurements or non-existing traits for some of the species in the tree.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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