6. Data visualisation

8 exemples de data visualisation

Data provides us with much more of a backstory that we usually realize. Maybe it’s because it takes an amazingly trained mind to harvest that data, or to create something visually compelling out of it—but we can do so much more with data than simply draw conclusions.

When we see great data storytelling, we’re seeing the realization of great data visualization. We’re seeing data that’s been analyzed well and presented in a way that someone who’s never even heard of data science can get it.

Allowing Google’s Cole Nussbaumer to provide a friendly reminder of what data storytelling actually is, it’s straightforward, strategic, elegant, and simple. These fantastic examples of data storytelling below aren’t necessarily flashy, but their genius is in their ability to communicate rich ideas in the simplest terms.

Allow them to inspire you to do the same.

Minard’s Map of Napoleon’s Russian Campaign in 1812

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This one actually comes from an inbound.org AMA with Randy Olson, a data scientist and moderator over at Reddit’s r/dataisbeautiful.

This map of Napolean’s 1812 campaign, made by Charles Joseph Minard, is one of the data visualizations that inspired Randy to become a visual storyteller.

As you can see, it packs in an enormous amount of data to communicate the intricacies of an entire military campaign, without compromising on simplicity of design and its ability to be navigated.

New York’s Noisiest Neighborhoods

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This one comes from Ben Wellington, of I Quant New York, writing for The New Yorker (the same guy that helped figure out how to calculate a balance-free metro card).

In his article, he used data points from New York City noise complaints not only to map out which neighborhoods were noisiest, but why they were noisy. From the screenshot above, you can see that you’ll definitely want to steer clear of two neighborhoods near the Bronx if you hate the sound of ice cream trucks.

40 Years of America’s Eating Habits

In this article from Danielle Kurtzleben of Vox, she uses data points from the USDA to quantify the statement, “You don’t eat the way your parents did.”

Rather than showing year by year by year comparisons for each different food item, the chart displays the difference over a multi-decade period, organized that decreases in consumption and then shifting into increases.

Based on the way it starts, and the long nature of the chart, you may think that it’s going to prove we’re so much healthier. Instead it goes on to show dramatic increases in both positive and negative ingredients—accurately reflecting changes without pushing one nutritional point unfairly over another.

100,000 Stars

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While 3D may not always be lauded as the ideal, this certainly proves its utility, especially in this complex, nearly unfathomable subject of light years.

It can be hard to visualize the actual size of our solar system, let alone galaxy, or universe. These guys try to make it possible, using data and pictures together. The 100,000 Stars site puts scientific data about the size of our universe into more palatable terms.

When you elect to have a “tour” of the vast map on your screen, you’re taken through a slow series of statistic and 3D visuals that show you just how big our galaxy is, relative to our solar system. While we can’t visualize light years when we see it as a number on a screen, this gives us the visual tools we need to put it in terms we can better understand.

How Seattle Residents Determine Housing

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Housing is always an interesting subject, especially when it begins to lead into other discussions like gentrification. This visual data storytelling from The Seattle Times does an amazing job of clearing the facts up.

As you can see, for most neighborhoods, the same concerns are nearly universal. Most people (except downtowners, where rent is more expensive) care about affordability the most. Relatively speaking, those same people all care the same amount about quality of school, commute, and care little about change in family size.

It also demonstrates more easily the correlation that people who care about walking distance probably care about proximity to public transportation. While these correlations may not be the same for every major city, it presents a comprehensive way to visualize a broad amount of surveyed information.

How Machines Destroy/Create Jobs

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These two charts from npr.org do an incredible job of showing what the rise of machines has really done to American jobs.

In 1850, as the graph will tell you when you scroll over it, there were roughly 2.6 million working farmers in the U.S., and in 2013, there were roughly 1.6 million. In 1850, 51% of American workers were farmers, in 2013, only 1% were (no, a different 1%).

You don’t have to be a math genius to understand that that doesn’t mean the economy is in shambles because we don’t have more working farmers—it just means that as the rise of machines in jobs happened and working population grew, people flocked mostly to white collar jobs.

Rather than showing the shifts in unemployment, they’re showing the shift in the job landscape, creating a more realistic picture in answering a question like “what happened because of x?”

How Much Of Your Life The U.S. Has Been At War

In a recent article from the Washington Post, The Fix’s Phillip Bump set out to correct a recent graduation speaker who said that the current set of graduates had spent more than half their life in war time. In reality, it’s more accurate to say about 65% of those (college) graduates’ lives.

This chart is both startling and brilliant, as it uses a very simple two-color, two-column design to communicate a lot of data points. Not only does it show each birth year’s population, but also what percentage was spent in war/peace, and which wars and peace times those were.

The statistics down the middle only simplify its readability even more.

A Chord Diagram Showing Phone Habits

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Finally, there is this chord chart from Visual Cinnamon. The goal of the chord chart is to show the trend of cellphone users in the Netherlands, essentially showing the current market share, and also what kind of phone the respondents owned before their current one.

So this chart is actually able to communicate, in a fairly straightforward way, what percentage of Samsung users previously owned a Nokia, how many Nokia users have stayed loyal from their previous phones, and how many phones Apple has taken from Samsung—as well as every other possible combination of brand switching/retention.

Best of all, if you follow the link to the chart’s website, you can highlight individual brands to see their behavior on the chart.

As this list demonstrates, there’s no one way to tell a great story with your data. Each of these charts, graphs and pictures showcases the simplest method of presenting data, without compromising clarity or volume of information. Be inspired to tell your data story well!



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