Choropleth Maps in R - TIGER Shapefile issue

Question

Have a Question on Mapping with R, specifically around the choropleth maps in R.

I have a dataset of ZIP codes assigned to an are and some associated data (dataset i

Answer 1

I would advise the following.

• Use readOGR from the rgdal package rather than readShapeSpatial.
• Consider using ggplot2 for good-looking maps - many of the examples use this.
• Refer to one of the existing examples of creating a choropleth such as this one to get an overview.
• Start with a simple choropleth and gradually add your own data; don't try and get it all right at once.
• If you need more help, create a reproducible example with a SMALL fake dataset and with links to the shapefiles in question. The idea is that you make it easy to help us help you rather than discourage us by not supplying code and data in your question.