My 8 Takeaways from the ACS Data Users Conference

As a Census data nerd, I’ve been geeking out with the rest of my tribe during each American Community Survey (ACS) Data Users Conference. Each one has been a fun and interesting experience, with insider experiences about the challenges and opportunities in using Census data. I use this inside information for the benefit of my clients, who […]

Mapping Vehicle Commuters in New York City

Because many good things come in threes, I thought I’d round out this series of posts (looking at subways and bus commuters) on commuting trends in New York City with a look at vehicle commuters with this map: As before, this uses data from the US Census Bureau 2009-2013 American Community Survey 5-Year Estimates. It’s […]

Mapping NYCT Bus Transit Sheds

Alon Levy left a comment on my post earlier today about NYCT Subway transit sheds asking about bus travel. The code I’d written to access the Census API was easy to customize and I just swapped out the subway trips for bus to get this map: As I mentioned in my previous post, relatively few people on […]

Mapping the NYC Subway Transit Sheds

I’ve been fascinated with the idea of a transit shed since I first encountered it studying the transit system in New York City. The idea is similar to a watershed, the area drained by a particular river. Public transit lines are like rivers of people, feeding them into the great reservoirs of jobs all around […]

American Community Survey Data Users Conference – Day 2

As I mentioned in a previous post, I attended the inaugural ACS Data Users Conference this past month in Washington, DC. It was a gathering of over 300 researchers, policy analysts, and business analysts who work with the data.  The second day was focused more on applications and one of the more interesting presentations came […]

American Community Survey Data Users Conference – Day 1

As someone who’s interested in the use of Census data for analysis, I couldn’t resist attending the first inaugural ACS Data Users Conference, held in DC May 29-30.  The conference brought together over 300 people who use the ACS in various applications, from research, to policy, and to business.  On hand were a number of […]

In Praise of Sampling

I’m not a statistician by training, but as a data scientist statistical methods are extremely important, and I’ve tried to learn as much as I can. Often this is helpful in understanding the reasonable limits and possibilities of what can be inferred from a given dataset. For instance, understanding how the data is distributed in […]