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- W4300569570 abstract "Statistical analyses of directional or angular data have applications in a variety of fields, such as geology, meteorology and bioinformatics. There is substantial literature on descriptive and inferential techniques for univariate angular data, with the bivariate (or more generally, multivariate) cases receiving more attention in recent years. More specifically, the bivariate wrapped normal, von Mises sine and von Mises cosine distributions, and mixtures thereof, have been proposed for practical use. However, there is a lack of software implementing these distributions and the associated inferential techniques. In this article, we introduce BAMBI, an R package for analyzing bivariate (and univariate) angular data. We implement random data generation, density evaluation, and computation of theoretical summary measures (variances and correlation coefficients) for the three aforementioned bivariate angular distributions, as well as two univariate angular distributions: the univariate wrapped normal and the univariate von Mises distribution. The major contribution of BAMBI to statistical computing is in providing Bayesian methods for modeling angular data using finite mixtures of these distributions. We also provide functions for visual and numerical diagnostics and Bayesian inference for the fitted models. In this article, we first provide a brief review of the distributions and techniques used in BAMBI, then describe the capabilities of the package, and finally conclude with demonstrations of mixture model fitting using BAMBI on the two real datasets included in the package, one univariate and one bivariate." @default.
- W4300569570 created "2022-10-03" @default.
- W4300569570 creator A5003527041 @default.
- W4300569570 creator A5032952151 @default.
- W4300569570 date "2017-08-25" @default.
- W4300569570 modified "2023-09-26" @default.
- W4300569570 title "BAMBI: An R package for Fitting Bivariate Angular Mixture Models" @default.
- W4300569570 doi "https://doi.org/10.48550/arxiv.1708.07804" @default.
- W4300569570 hasPublicationYear "2017" @default.
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