The data in the jacobs2016data/ directory are from
the appendix in
C. T. Jacobs, G. J. Gorman, H. E. Rees, L. E. Craig (In Press). Experiences with efficient methodologies for teaching computer programming to geoscientists. Journal of Geoscience Education. Pre-print: http://arxiv.org/abs/1505.05425
and are used with permission. Please contact the authors if you are interested in using their work in any way. Thank you!