Errata

This page enumerates errors in the print version. The online version is kept up-to-date with corrections.

• Chapter 3, p. 56: “roughtly” should be “roughly” (typo).
• Chapter 6, p. 141: dot-density map lacks a figure caption and is not numbered as a figure.
• Chapter 7, p. 183: the 2020 Census block shapefiles have renamed the HU20 column to HOUSING20 since publication.
• Chapter 7, section 7.4: the hospitals object from DHS has changed since publication, and the code must be modified to run correctly.

  • On p. 187, the correct hospital URL is now “https://services1.arcgis.com/Hp6G80Pky0om7QvQ/arcgis/rest/services/Hospital/FeatureServer/0/query?outFields=*&where=1%3D1&f=geojson”.

  • On p. 193, the name of Iowa Methodist Medical Center has changed. Use ID == "0009850308" in the filter() expression instead.

• Chapter 8, p. 234: “indented” should be “intended” (typo).
• Chapter 8, p. 244 and 246: beta symbol renders in the print version as a question mark; renders correctly in the HTML version
• Chapter 10, p. 280: “2.56” changed to “2.576” (typo).