Publications by Ari Lamstein
Mapping Birds with Choroplethr
The bird in question. But where does it live? Credit: Wikipedia. After releasing my course Mapmaking in R with Choroplethr last December I received an interesting email from Dr. Herb Wilson, a biologist at Colby College. Herb studies the Red-breasted Nuthatch, which live throughout the United States and Canada. He asked if it was possible to use...
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Margin 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 estimat...
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Announcing 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 copy of Hadley Wickham’s book Advanced R. W...
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A 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: > install.packages("choroplethr") > packageVersion("choroplethr") [1] ‘3.5.2’ 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 detai...
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New 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 with them will allow you to analy...
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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! AuthorEntry Luke Smith2016 Texas Primaries: Mapped Alexander PodkulDonors and Donat...
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Free Workshop: Mapping Open Data in R
On May 17 I will be running a free workshop titled Mapping Open Data in R. The workshop will be in Berkeley, CA and is open to the public. If you have an interest in the subject matter then I hope that you will attend! Here is a sample of the maps that people will learn to create: The workshop will cover some of the material from my free cours...
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Upcoming Webinars: Shapefiles for R Programmers
This weekend I finished production of my new course, Shapefiles for R Programmers. To celebrate the launch, tomorrow I will be announcing a special limited-time discount. Today, however, I want to announce two live webinars that I will be doing about the course: Wednesday at 1pm PT Thursday at 10am PT In these webinars I will be giving away, fo...
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Launch Bonuses for Shapefiles for R Programmers
Yesterday I announced two webinars that I will be running to celebrate the launch of my new course, Shapefiles for R Programmers. Today I’m announcing two bonuses that I’m giving to people who buy the course by Thursday at 5pm PT: A 15% discount (save $15)! An invitation to a special Q&A webinar with me Click here to learn more! If you ...
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Webinar Recap: Shapefiles for R Programmers
Last week I ran two webinars on my new course, Shapefiles for R Programmers. If you were interested in watching, but unable attend, you can watch a replay below: Some thoughts on webinars I ran my first webinar about 6 months ago. Before running it I was unsure what to expect. However, it immediately became clear that the medium has a huge pote...
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