Package: arimasel
Title: Cartesian Product-Based ARIMA Model Identification and Selection
Version: 0.2.0
Authors@R: person("Olushina Olawale", "Awe",
    email = "olawaleawe@gmail.com",
    role  = c("aut", "cre"),
    comment = c(ORCID = "0000-0002-0442-4519"))
Description: Provides an alternative algorithm for ARIMA and seasonal ARIMA
    model identification based on Cartesian products of user-supplied
    parameter sets. Rather than relying on ACF/PACF plots or stepwise search
    (as in auto.arima()), the package exhaustively evaluates every candidate
    (p,d,q)(P,D,Q)[m] combination in the requested index sets, ranks all
    converged models by AIC, AICc, BIC, and HQIC simultaneously, computes
    Akaike weights for model uncertainty quantification, supports exogenous
    regressors, produces ensemble forecasts, evaluates candidate models by
    rolling-origin (expanding window) cross-validation, and provides
    publication-quality diagnostic and comparison plots. A feature-based
    exploratory data analysis suite computes scale-free time series
    characteristics (trend and seasonal strength, spectral entropy,
    autocorrelation, lumpiness, stability) in the spirit of Hyndman, Wang
    and Laptev (2015), and a feature-guided automatic search narrows the
    Cartesian product model space before the exhaustive search runs. The
    algorithm is flexible, transparent, and widely applicable for quick,
    reproducible ARIMA model selection in both academic research and
    industry forecasting pipelines. Applications are demonstrated with
    Nigerian macroeconomic time series data.
License: GPL-3
Encoding: UTF-8
LazyData: true
Depends: R (>= 4.0.0)
Imports: stats, graphics, grDevices, utils, parallel
Suggests: tseries, forecast, testthat (>= 3.0.0), knitr, rmarkdown
VignetteBuilder: knitr
RoxygenNote: 7.3.1
URL: https://github.com/Olawaleawe/arimasel
BugReports: https://github.com/Olawaleawe/arimasel/issues
NeedsCompilation: no
Packaged: 2026-09-09 12:59:40 UTC; root
Author: Olushina Olawale Awe [aut, cre] (ORCID:
    <https://orcid.org/0000-0002-0442-4519>)
Maintainer: Olushina Olawale Awe <olawaleawe@gmail.com>
Repository: CRAN
Date/Publication: 2026-09-17 12:00:02 UTC
Built: R 4.5.2; ; 2026-09-17 12:53:18 UTC; unix
