Posts Tagged ‘ Business ’

Painting the full picture of the employment situation

May 5, 2015
By
Painting the full picture of the employment situation

It's very frustrating to read the mainstream articles about the recent unemployment report. For example, the New York Times said "U.S. Jobless Claims Hit 15-year Low." (link) At this point, everyone should be aware of how employment statistics, in particular,...

Read more »

Reading between the gridlines

April 28, 2015
By
Reading between the gridlines

Reader Jamie H. pointed me to the following chart in the Guardian (link), which originated from Spotify. This chart is likely inspired by the Arctic ice cover chart discussed here last year (link): Spotify calls its chart "the Coolness Spiral...

Read more »

More on the AA paper

April 21, 2015
By
More on the AA paper

This is a supplement to the previous post about a new research paper on the effect of Alcoholics Anonymous, and an NY Times exposition that I commented on. A misreading of that article led me to complain about per-protocol analysis, which wasn't the methodology behind the Humphrey et. al. research. I will explain their methodology in this post (known as instrumental variables analysis). *** In the last post, I showed…

Read more »

NYT likes new AA study. Why I am not convinced.

April 20, 2015
By
NYT likes new AA study. Why I am not convinced.

[After communicating with Frakt, Humphrey and Dean Eckles, I realize that I was confused about Frakt's description of the Humphrey paper, which does not perform PP analysis. So when reading this post, consider it a discussion of ITT versus PP analysis. I will post about Humphrey's methodology separately.] The New York Times plugged a study of the effectiveness of Alcoholics Anonymous (AA) (link). The author (Austin Frakt) used this occasion…

Read more »

Hello to St. Louis readers

April 15, 2015
By
Hello to St. Louis readers

I'll be hosting a Data Visualization workshop at the Digital Media Marketing Conference in St. Louis, Missouri on Thursday. Here is the link to their website. The workshop is arranged from three themes: Appreciating, Conceptualizing, and Improving. There will be...

Read more »

Planned redundancy

April 7, 2015
By
Planned redundancy

The following Wall Street Journal caught my eye the other day: (Link to article) Looking closely, I realize that the four charts are identical, except for the call-outs. This is a kind of small-multiples in which the same data reside...

Read more »

What popular baby names teach us about data analytics

April 6, 2015
By

In my latest piece for Harvard Business Review (link), I tackle this common problem in the interactions between data scientists and business managers: A typical big data analysis goes like this: First, a data scientist finds some obscure data accumulating in a server. Next, he or she spends days or weeks slicing and dicing the numbers, eventually stumbling upon some unusual insights. Then, a meeting is organized to present the…

Read more »

Sense and nonsense about Big Data and surveys

March 23, 2015
By

The American Association for Public Opinion Research (AAPOR) has put out its Big Data report last month (link). This one is worth reading. It has some of the most current citations, and readers of this blog will be very receptive to its core messages. The team who wrote the report is a mix of academics and practitioners. *** In Big Data, there are many self-evident truths, according to the people…

Read more »

Bumps chart goes mainstream

March 19, 2015
By
Bumps chart goes mainstream

It’s a happy day when one of my favorite chart types, the Bumps chart, makes it to the Wall Street Journal, and the front page no less! (Link to article) This chart shows the ground shifting in global auto production...

Read more »

Shortchanging and subverting the message

March 16, 2015
By
Shortchanging and subverting the message

Reader Michael N. calls this an "unusual" marketing bar chart--because the designer distorted the data in a way that weakens, rather than strengthen, the story! The infographic is pitching savings if the family switches to Republic. The savings is about...

Read more »


Subscribe

Email:

  Subscribe