PhotoGEA 
Overview
PhotoGEA (short for photosynthetic gas exchange analysis) is an R package that provides a suite of tools for loading, processing, and analyzing photosynthetic gas exchange data. See Lochocki, Salesse-Smith, & McGrath (2025) for more information.
Installation
PhotoGEA is available on CRAN, so the easiest way to install the latest release is to type the following from within an R terminal:
install.packages('PhotoGEA')See the Frequently Asked Questions for alternative installation methods.
Usage
The best way to learn about using PhotoGEA is to visit the PhotoGEA website and click the Get started link in the top menu bar. The website includes documentation for all the functions and data sets included in the package, as well as articles that describe its general features and several important use cases.
Example Scripts
The PhotoGEA Publications page includes links to publicly-available analysis scripts that have been used for peer-reviewed publications. These may be a useful source of ideas.
Several example scripts are also provided in the example_scripts directory of the source code repository. To run one of these scripts, set the working directory to a folder that contains a local copy of the script and use the source command to execute the code in the script. No guarantees are made that these scripts will run on your machine or be compatible with your data, but they may also be a useful source of ideas.