Package: betaARMA Title: Beta Autoregressive Moving Average Models Version: 1.2.0 Date: 2026-04-22 Authors@R: c( person(given = "Everton", family = "da Costa", email = "everto.cost@gmail.com", role = c("aut", "cre"), comment = c(ORCID = "0000-0001-7580-2639")), person(given = "Francisco", family = "Cribari-Neto", email = "francisco.cribari@ufpe.br", role = c("ctb", "ths"), comment = c(ORCID = "0000-0002-5909-6698", "Theoretical foundations")), person(given = "Vinicius", family = "Scher", role = "ctb", comment = c(ORCID = "0000-0003-0406-0265")) ) Description: Fits Beta Autoregressive Moving Average (BARMA) models for time series data distributed in the standard unit interval (0, 1). The estimation is performed via the conditional maximum likelihood method using the Broyden-Fletcher-Goldfarb-Shanno (BFGS) quasi-Newton algorithm. A ridge penalization scheme is available to improve numerical stability of the estimation, as proposed by Cribari-Neto, Costa and Fonseca (2025) . The package includes tools for model fitting, diagnostic checking, and forecasting, along with two hydro-environmental datasets from Brazil. Based on the work of Rocha and Cribari-Neto (2009) and the associated erratum Rocha and Cribari-Neto (2017) . The original code was developed by Fabio M. Bayer. License: MIT + file LICENSE URL: https://github.com/Everton-da-Costa/betaARMA BugReports: https://github.com/Everton-da-Costa/betaARMA/issues Encoding: UTF-8 RoxygenNote: 7.3.2 Language: en-US Imports: forecast, ggplot2, rlang, gridExtra Suggests: knitr, zoo, xtable, here, moments, rmarkdown, tseries, lbfgs, dplyr, scales, testthat (>= 3.0.0) VignetteBuilder: knitr Depends: R (>= 3.5) LazyData: true Config/testthat/edition: 3 Repository: https://everton-da-costa.r-universe.dev Date/Publication: 2026-06-18 13:20:02 UTC RemoteUrl: https://github.com/everton-da-costa/betaarma RemoteRef: HEAD RemoteSha: a6996742a98592ca897be7f7e3f559f367ebcc71 NeedsCompilation: no Packaged: 2026-06-18 14:39:29 UTC; root Author: Everton da Costa [aut, cre] (ORCID: ), Francisco Cribari-Neto [ctb, ths] (ORCID: , Theoretical foundations), Vinicius Scher [ctb] (ORCID: ) Maintainer: Everton da Costa