Data Visualization

Data visualization blogs

Dot plots are under-valued, that’s all

August 30, 2016
By
Dot plots are under-valued, that’s all

Bar charts are over-used and over-rated. Just casually, I found this example at US News: Are you comparing bar widths? Or the printed data? Here is a dot plot:

Read more »

Nassi-Shneiderman Diagrams

August 29, 2016
By
Nassi-Shneiderman Diagrams

Programming languages use words and symbols to represent structures like blocks and conditions. A visual representation of these structures seems useful to keep track of all the different cases, see the scope of variables, etc. Nassi-Shneiderman diagrams offer just such a representation. The structure of programs is sometimes shown using flow charts: decisions create branches, repetitions can … Continue reading Nassi-Shneiderman Diagrams

Read more »

Lining up the dopers and their medals

August 25, 2016
By
Lining up the dopers and their medals

The Times did a great job making this graphic (this snapshot is just the top half): A lot of information is packed into a small space. It's easy to compose the story in our heads. For example, Lee Chong Wai,...

Read more »

Stacked Bars Are the Worst

August 25, 2016
By
Stacked Bars Are the Worst

Bar charts are great. They always work. They're always the safe choice. Right? Well, no. Stacked bar charts are deceiving because we think they work just like regular bars, when they're really pretty terrible. Some Examples Look at the following chart, showing unemployment numbers for Bavaria. The total height of the bars is easy enough … Continue reading Stacked Bars Are the Worst

Read more »

Brexit, Bremain, the world did not end so dataviz people can throw shade and color

August 22, 2016
By
Brexit, Bremain, the world did not end so dataviz people can throw shade and color

Catching a dose of Alberto Cairo the other day. He has a good post about various Brexit/Bremain maps. The story started with an editor of The Spectator, who went on twitter to make the claim that the map on the...

Read more »

Two Ideas for a Better Visualization Web

August 17, 2016
By
Two Ideas for a Better Visualization Web

There is a reasonable amount of information about visualization available on the web. There are still huge gaps though, especially when it comes to bridging the gap between academic research and the rest of the world, though. Here are two ideas: one simple, one rather involved. Ben Shneiderman has recently been talking to a number of … Continue reading Two Ideas for a Better Visualization Web

Read more »

NBC has a problem with bar lengths

August 17, 2016
By
NBC has a problem with bar lengths

Seems like reader Conor H. has found a pattern. He alerted us to the problem with bar lengths in the daily medals chart on NBC, which I blogged about the other day. Through twitter (@andyn), I was sent the following,...

Read more »

Counting the Olympic medals

August 15, 2016
By
Counting the Olympic medals

Reader Conor H. sent in this daily medals table at the NBC website: He commented that the bars are not quite the right lengths. So even though China and Russia both won five total medals that day, the bar for...

Read more »

The Repetitive and Boring History of Visualization

August 15, 2016
By
The Repetitive and Boring History of Visualization

When people talk about the history of data visualization, the same set of names always comes up: Playfair, Nightingale, Snow, Minard. They are historically important, alright, but why do they overshadow all the other work that was done? And what do we know about how important they actually were? The Usual Suspects They’re like old … Continue reading The Repetitive and Boring History of Visualization

Read more »

Various ways of showing distributions 2

August 11, 2016
By
Various ways of showing distributions 2

In a comment to the previous post, Evan pointed to this Washington Post graphic: (link to article) This chart doesn't render properly in Firefox, nor in Safari. But we can see the designer's intention. It has an added dimension of...

Read more »


Subscribe

Email:

  Subscribe