updated reproducibility instructions.

README.md

@@ -2,9 +2,10 @@
 
 [![DOI](https://zenodo.org/badge/139384786.svg)](https://zenodo.org/badge/latestdoi/139384786)
 
-This repository contains the R scripts (.R and .Rmd files) necessary to reproduce results from this paper. Datasets generated by these scripts are found in the "data" directory. To run scripts "1-muir-data-wrangling.R" and "2-muir-analys.Rmd", you will need to download the dataset from Muir et al (2017), from [Data Dryad](https://datadryad.org/stash/dataset/doi:10.5061/dryad.1r8c2). Unzip the download and place the contents inside "data/muir/".  Session info is provided in `session_info.txt`.
+This repository contains the R scripts (.R and .Rmd files) necessary to reproduce results from this paper. Datasets generated by these scripts are found in the "data" directory. To run scripts "1-muir-data-wrangling.R" and "2-muir-analys.Rmd", you will need to download the dataset from Muir et al (2017), from [Data Dryad](https://datadryad.org/stash/dataset/doi:10.5061/dryad.1r8c2). Unzip the download and place the contents inside "data/muir/".
 Figures and tables generated by the analysis are found in the "out" directory.
 
+This project uses [renv](https://rstudio.github.io/renv/articles/renv.html) to manage package dependencies. After downloading this (or forking it via GitHub), open the .Rproj file.  After installing and loading the `renv` package, simply run `restore()` to install the exact configuration of R packages originally used in this analysis.
 
 ### References
 Muir CD, Conesa MÀ, Roldán EJ, et al (2017) Weak coordination between leaf structure and function among closely related tomato species. New Phytol 213:1642–1653. doi: 10.1111/nph.14285