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default - Change the Default Arguments in R Functions

A simple syntax to change the default values for function arguments, whether they are in packages or defined locally.

Last updated

6.45 score 44 stars 322 scripts 340 downloads

versions - Query and Install Specific Versions of Packages on CRAN

Installs specified versions of R packages hosted on CRAN and provides functions to list available versions and the versions of currently installed packages. These tools can be used to help make R projects and packages more reproducible. 'versions' fits in the narrow gap between the 'devtools' install_version() function and the 'checkpoint' package. devtools::install_version() installs a stated package version from source files stored on the CRAN archives. However CRAN does not store binary versions of packages so Windows users need to have RTools installed and Windows and OSX users get longer installation times. 'checkpoint' uses the Revolution Analytics MRAN server to install packages (from source or binary) as they were available on a given date. It also provides a helpful interface to detect the packages in use in a directory and install all of those packages for a given date. 'checkpoint' doesn't provide install.packages-like functionality however, and that's what 'versions' aims to do, by querying MRAN. As MRAN only goes back to 2014-09-17, 'versions' can't install packages archived before this date.

Last updated

5.20 score 25 stars 63 scripts 333 downloads

pop - A Flexible Syntax for Population Dynamic Modelling

Population dynamic models underpin a range of analyses and applications in ecology and epidemiology. The various approaches for analysing population dynamics models (MPMs, IPMs, ODEs, POMPs, PVA) each require the model to be defined in a different way. This makes it difficult to combine different modelling approaches and data types to solve a given problem. 'pop' aims to provide a flexible and easy to use common interface for constructing population dynamic models and enabling to them to be fitted and analysed in lots of different ways.

Last updated

4.95 score 10 stars 18 scripts 214 downloads

greta.hmm - Hidden Markov Modelling in greta

Extends greta by providing functionality for fitting Hidden Markov Models (HMMs).

Last updated

2.48 score 3 stars