Package: InterNL
Type: Package
Title: Time Series Intervention Model Using Non-Linear Function
Version: 0.1.0
Authors@R: c(person("Dr. Amrit Kumar", "Paul", role = "aut"),
            person("Dr. Md", "Yeasin", role = c("aut","cre"), email = "yeasin.iasri@gmail.com"),
            person("Dr. Ranjit Kumar", "Paul", role = "aut"),
            person("Mr. Subhankar", "Biswas", role = "aut"),
            person("Dr. HS", "Roy", role = "aut"),
            person("Dr. Prakash", "Kumar", role = "aut")
            )
Author: Dr. Amrit Kumar Paul [aut], Dr. Md Yeasin [aut, cre], Dr.
        Ranjit Kumar Paul [aut], Mr. Subhankar Biswas [aut], Dr. HS Roy
        [aut], Dr. Prakash Kumar [aut]
Maintainer: Dr. Md Yeasin <yeasin.iasri@gmail.com>
Description: Intervention analysis is used to investigate structural
        changes in data resulting from external events. Traditional
        time series intervention models, viz. Autoregressive Integrated
        Moving Average model with exogeneous variables (ARIMA-X) and
        Artificial Neural Networks with exogeneous variables (ANN-X),
        rely on linear intervention functions such as step or ramp
        functions, or their combinations. In this package, the
        Gompertz, Logistic, Monomolecular, Richard and Hoerl function
        have been used as non-linear intervention function. The
        equation of the above models are represented as: Gompertz: A *
        exp(-B * exp(-k * t)); Logistic: K / (1 + ((K - N0) / N0) *
        exp(-r * t)); Monomolecular: A * exp(-k * t); Richard: A + (K -
        A) / (1 + exp(-B * (C - t)))^(1/beta) and Hoerl:
        a*(b^t)*(t^c).This package introduced algorithm for time series
        intervention analysis employing ARIMA and ANN models with a
        non-linear intervention function. This package has been
        developed using algorithm of Yeasin et al.
        <doi:10.1016/j.hazadv.2023.100325> and Paul and Yeasin
        <doi:10.1371/journal.pone.0272999>.
License: GPL-3
Encoding: UTF-8
Imports: stats, forecast, MLmetrics
RoxygenNote: 7.2.1
NeedsCompilation: no
Packaged: 2026-10-08 09:37:39 UTC; root
Repository: https://yeasinstat.r-universe.dev
Date/Publication: 2024-04-19 02:34:51 UTC
RemoteUrl: https://github.com/cran/InterNL
RemoteRef: HEAD
RemoteSha: 902b4fd2850b9ae8a8d6406529e12b21243d1a5b