As part of the program of the 2017 APSA conference in San Francisco, I taught a pre-conference short course together with Eric Dunford, Andrew Linke, Erin McGrath, David Backer and David Cunningham on two of the R software packages we released in 2017: meltt and geomerge.
The workshop tutorial files may be downloaded as a .zip archive here. They are provided both as .html files as well as R markup .Rmd files. The most recent versions of the two software packages are available on my GitHub repository. If you have any questions, please contact me at firstname.lastname@example.org.