Built on top of git2r and archivist, this package aims at making high-level, robust, machine and OS independent tools for making deeply reproducible and reusable content in R. This extends beyond the package management utilities of packrat and checkpoint by including tools for caching, and accessing GitHub repositories.

## Main Tools

There are many elements within the reproducible package. However, there are currently 3 main ones that are critical for reproducible research. The key element for reproducible research is that the code must always return the same content every time it is run, but it must be vastly faster the 2nd, 3rd, 4th etc, time it is run. That way, the entire code sequence for a project of arbitrary size can be run from the start every time.

 Function Objective Cache A robust wrapper for any function, including those with environments, disk-backed storage (currently on Raster) class), operating-system independent, whose first time called will execute the function, 2nd time will compare the inputs to a an SQLite database of entries, and recover the first result if inputs are identical. If options("reproducible.useMemoise" = TRUE), the third time will be very fast as it will recover the answer from RAM prepInputs A function to download, or load objects, and possible post process them. The main advantage to using this over more direct routes is that it will automatically build checksums tables, use Cache internally where helpful, and possibly run a variety of post processing actions. This means this function can also itself be cached for even more speed. This allows all project data to be stored in custom cloud locations or in their original online data repositories, without altering code between the first, second, third etc. times the code is run. Require A version of require that incorporates elements of install.packages, devtools::install_github, packrat. It allows for users code to work for a new user on a new machine that may or may not have all packages installed.

## Package options

See reproducibleOptions for a complete description of package options to configure behaviour.