ipmr

Integral Projection Models

CRAN Package

Flexibly implements Integral Projection Models using a mathematical(ish) syntax. This package will not help with the vital rate modeling process, but will help convert those regression models into an IPM. 'ipmr' handles density dependence and environmental stochasticity, with a couple of options for implementing the latter. In addition, provides functions to avoid unintentional eviction of individuals from models. Additionally, provides model diagnostic tools, plotting functionality, stochastic/deterministic simulations, and analysis tools. Integral projection models are described in depth by Easterling et al. (2000) [doi:10.1890/0012-9658(2000)081[0694:SSSAAN]2.0.CO;2](https://doi.org/10.1890%2F0012-9658%282000%29081%5B0694%3ASSSAAN%5D2.0.CO%3B2), Merow et al. (2013) doi:10.1111/2041-210X.12146, Rees et al. (2014) doi:10.1111/1365-2656.12178, and Metcalf et al. (2015) doi:10.1111/2041-210X.12405. Williams et al. (2012) doi:10.1890/11-2147.1 discuss the problem of unintentional eviction.


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Insights

Last 30 days

This package has been downloaded 228 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 11 times.

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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 3,770 times in the last 365 days. That's enough downloads to impress a room full of undergrads. A commendable achievement indeed. The day with the most downloads was Sep 11, 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


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Dependencies

  • Imports4 packages
  • Suggests8 packages
  • Linking To1 package
  • Reverse Depends1 package