photosynthesis is an R package with modeling tools for C3 photosynthesis, as well as analytical tools for curve-fitting plant ecophysiology responses. It uses the R package units to ensure that parameters are properly specified and transformed before calculations.
or from GitHub
See the following vignettes for examples of what photosynthesis can do:
We welcome comments, criticisms, and especially contributions! GitHub issues are the preferred way to report bugs, ask questions, or request new features. You can submit issues here: