The data matrix scores GunsToCarry's breakdown of U.S. gun legislation as a set of 17 binary and ternary characters, which is then used to infer inter-state pairwise (mean/Hamming) distances.
I provide the data matrix in two formats: *.nex — A fully annotated version (character states labelled) generated with (and optimised for) Mesquite (https://mesquiteproject.wikispaces.com/) *.simple.nex — Version in (old) NEXUS format (data block) showing the set-up for the distance analysis such as the used weighting scheme
Results are provided raw and graphically enhanced *.dst — the resultant pairwise distance matrix in (extended) PHYLIP format *.dist — the resultant neighbour-net, Splits-NEXUS-formatted (can be opened and visualised with SplitsTree, www.splitstree.org, and R/phangorn, https://github.com/KlausVigo/phangorn) *.png – graphically enhanced versions of the resultant neighbour-net as shown in the original post and the related long-read at Res.I.P. (http:///phylonetworks.blogspot.com/)
Listed programmes are free-to-use software, *.simple.nex and *.dst files can also be viewed with any text-editor (*.nex and *.dist can be viewed but include complex additional code-lines)