Supplement 1. Example data and R code.

File List collyer_adams_Rcode.txt -- R code for running analysis<br> collyer_adams_example_data.csv -- example data to input into R routine<br> collyer_adams_example_xmat.csv -- coding for the design matrix used <br> collyer_adams_ESA_supplement.zip -- all files at once Description The collyer_adams_Rcode.txt file contains a procedure for performing the analysis described in Appendix A, using R. The procedure imports data and a design matrix (collyer_adams_example_data.csv and collyer_adams_example_xmat.csv are provided, and correspond to the example in Appendix A). The default number of permutations is 999, but can be changed. A matrix of random values (distances, contrasts, angles) and a results summary are created from the program. Users should be aware that importing different data sets will require altering some of the R code to accommodate their data (e.g., matrix dimensions would need to be changed).