All posts by Ari Lamstein
R Election Analysis Contest Results
On March 28th I announced the R Election Analysis Contest. The quantity and quality of submissions was amazing! If you have not been following along, here is a complete list of submissions, with links, in order of submission. I encourage you to read them all! A Behind the Scenes Look… Before announcing the winner, I’d […]
Continue readingNew Course: “Shapefiles for R Programmers”
Today my new course, Shapefiles for R Programmers, is available for preorder! This course is designed to open up new doors of data analysis for R programmers by teaching them how to work with shapefiles, using both GIS programs and R. Shapefiles are the most common method of storing maps, and learning how to work […]
Continue readingA Tale of Two Bugs
Today I am happy to announce that a new version of choroplethr is now on CRAN. To get it type the following: The new version is 3.5.2. This version fixes two fairly pernicious bugs that were introduced in the last update to choroplethr. For reference, he is a detailed description of the bugs and their […]
Continue readingAnnouncing the R Election Analysis Contest
Today I am happy to announce the R Election Analysis Contest. The goal of the contest is to encourage and promote high quality reproducible research in R that focuses on elections. The winner will be featured on my blog and receive a free copy of my course Mapmaking in R with Choroplethr as well as a […]
Continue readingMargin of Error by Geography in the American Community Survey (ACS)
Today I will demonstrate how the margin of error in American Community Survey (ACS) estimates grow as the size of the geography decreases. The final chart that we’ll create is this: The way I interpret the above chart is this: The ACS is very confident about its state-level estimates. It’s a bit less confident about county-level estimates. But […]
Continue reading