A little over 7 months ago I posted about a package that I had been working on,
quickmapr. That was the pre-release version, the one that I finished up today and submitted to CRAN is a bit more polished, plots rasters a bit quicker, and is, I think, ready for wider release. It is now availble from CRAN.
The README on GitHub provides details plus some examples using a small dataset included with the package. I would be thrilled to get some feedback from people on the package, ease of use, suggestions for improvements, etc. I would be even more thrilled if you try it out on different datasets. Any thoughts just add them as issues.