This repository contains data and code for the paper "Regression, transformations, and mixed-effects with marine bryozoans" (Evans, 2022), which discusses how to use data from Pettersen et al. (2015) to teach statistics students about data wrangling, regression, transformations, and mixed effects models.
- bryozoan_raw.csv : The original data set made available by Pettersen et al. It contains an error in the recorded mass for late-stage Bugula neritina
- bryozoan_data.csv : A tidy version of bryozoan_raw.csv, with the untransformed mass and metabolic rate. The error for late-stage Bugula is still present
- bryozoan_data_fixed.csv : The fully cleaned data, with the error fixed
- bryozoan_paper_analysis.R : An R script containing all analysis used for data processing and analysis
*.pdf : images for data visualization and modeling in the paper
- bryozoan_paper_activity.html : An activity that walks students through an initial reading of Pettersen et al. (2015). This activity is also hosted at https://ciaran-evans.github.io/files/bryozoan_paper_activity.html
- bryozoan_paper_activity.Rmd : The source file for the activity
Pettersen, A. K., White, C. R., & Marshall, D. J. (2015). Why does offspring size affect performance? Integrating metabolic scaling with life-history theory. Proceedings of the Royal Society B: Biological Sciences, 282(1819), 20151946. URL: https://royalsocietypublishing.org/doi/10.1098/rspb.2015.1946