Setting up a new SPC-based example dataset called "bergstrom2018". Shawn Salley is the lead on this.

citation:https://www.sciencedirect.com/science/article/pii/S0016706117314738?via%3Dihub#f0020
background:https://www.sciencedirect.com/science/article/pii/0169555X9090012F?via%3Dihub

bergstrom2018 will be used to develop / test new methods for working with strain calculations and novel vizualizations.