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.
Installing PhotoGEA
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')
Using PhotoGEA
The PhotoGEA
package includes extensive documentation,
and more articles are being added all the time:
- Analysis guides:
-
Frequently
Asked Questions: Provides answers to frequently asked questions
about
PhotoGEA
. -
Publication
Gallery: Includes a list of publications that describe or use
PhotoGEA
, along with links to their corresponding analysis scripts. - General
PhotoGEA
advice:-
Creating
Your Own Processing Tools: Discusses how to create functions
compatible with
PhotoGEA
that apply new types of processing. -
Combining
PhotoGEA With Other Packages: Discusses how to create wrappers for
functions from other packages to extend the processing capabilities of
PhotoGEA
. -
Developing
a Data Analysis Pipeline: Discusses how
PhotoGEA
provides functionality for all parts of a data analysis pipeline, including loading and validating the data – and how it can help save your time and improve the reproducibility of your data analysis! -
Working
With Extended Data Frames: Discusses how to work with extended data
frames, which are a critical part of
PhotoGEA
.
-
Creating
Your Own Processing Tools: Discusses how to create functions
compatible with
- General gas exchange advice:
- Guide to Licor LI-6800 User Constants: Discusses how to include metadata in log files when using a Licor LI-6800 gas exchange measurement system, and provides advice for dealing with data sets that do not contain user constants.