The question effectively says it all. I have a dataset that is geographically linked to (2019) Metropolitan Statistical Areas and the GEOIDs of each. I want to draw a map of the U.S. that visualizes the range of values across MSAs for a set of variables.
The problem is, while I've done rudimentary mapping on counties and states in Python, I've never done any mapping in R - and I've never used the MSA as the basic geographic unit. To my surprise, resources online seem scarce.
Does anyone have any experience or access to a guide for this? I wouldn't think it'd be that difficult, but I'm no closer to where I started a week ago.