InterNL

Time Series Intervention Model Using Non-Linear Function

CRAN Package

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.


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Insights

Last 30 days

This package has been downloaded 196 times in the last 30 days. More than a random curiosity, but not quite a blockbuster. Still, it's gaining traction! The following heatmap shows the distribution of downloads per day. Yesterday, it was downloaded 4 times.

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0 downloadsMar 16, 2025
0 downloadsMar 17, 2025
5 downloadsMar 18, 2025
8 downloadsMar 19, 2025
9 downloadsMar 20, 2025
8 downloadsMar 21, 2025
5 downloadsMar 22, 2025
6 downloadsMar 23, 2025
7 downloadsMar 24, 2025
4 downloadsMar 25, 2025
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5 downloadsMar 27, 2025
2 downloadsMar 28, 2025
1 downloadsMar 29, 2025
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6 downloadsApr 1, 2025
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6 downloadsApr 5, 2025
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5 downloadsApr 8, 2025
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2 downloadsApr 10, 2025
10 downloadsApr 11, 2025
11 downloadsApr 12, 2025
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23 downloadsApr 14, 2025
8 downloadsApr 15, 2025
4 downloadsApr 16, 2025
0 downloadsApr 17, 2025
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0 downloadsApr 19, 2025
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The following line graph shows the downloads per day. You can hover over the graph to see the exact number of downloads per day.

Last 365 days

This package has been downloaded 1,982 times in the last 365 days. Consider this 'mid-tier influencer' status—if it were a TikTok, it would get a nod from nieces and nephews. The day with the most downloads was Apr 20, 2024 with 41 downloads.

The following line graph shows the downloads per day. You can hover over the graph to see the exact number of downloads per day.

Data provided by CRAN


Binaries


Dependencies

  • Imports2 packages