line chart

58 posts
Transforming the data to fit the message

A short time ago, there were reports that some theme-park goers were not happy about the latest price hike by Disney. One of these report, from the Washington Post (link), showed a chart that was intended to convey how much Disney park prices have outpaced inflation. Here is the chart: I had a lot of trouble processing this chart. The two lines are labeled "original price" and "in 2014 dollars"....

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GDPR: justice for data visualization

Reader LG found the following chart, tweeted by @EU_Justice. This chart is a part of a larger infographic, which is found here. The following points out a few issues with this effort: The time axis is quite embarrassing. The first six months or so are squeezed into less than half the axis while the distance between Nov and Dec is not the same as that between Dec and Jan. So...

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Labels, scales, controls, aggregation all in play

JB @barclaysdevries sent me the following BBC production over Twitter. He was not amused. This chart pushes a number of my hot buttons. First, I like to assume that readers don't need to be taught that 2007 and 2018 are examples of "Year". Second, starting an area chart away from zero is equally as bad as starting a bar chart not at zero! The area is distorted and does not...

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NYT hits the trifecta with this market correction chart

Yesterday, in the front page of the Business section, the New York Times published a pair of charts that perfectly captures the story of the ongoing turbulence in the stock market. Here is the first chart: Most market observers are very concerned about the S&P entering "correction" territory, which the industry arbitrarily defines as a drop of 10% or more from a peak. This corresponds to the shortest line on...

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Message-first visualization

Sneaky Pete via Twitter sent me the following chart, asking for guidance: This is a pretty standard dataset, frequently used in industry. It shows a breakdown of a company's profit by business unit, here classified by "state". The profit projection for the next year is measured on both absolute dollar terms and year-on-year growth. Since those two metrics have completely different scales, in both magnitude and unit, it is common...

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The French takes back cinema but can you see it?

Kaiser Fung (JunkCharts, Principal Analytics Prep) finds a visual design that highlights the insights from data comparing ticket sales of U.S. movies versus French movies in France.

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The French takes back cinema but can you see it?

I like independent cinema, and here are three French films that come to mind as I write this post: Delicatessen, The Class (Entre les murs), and 8 Women (8 femmes).  The French people are taking back cinema. Even though they purchased more tickets to U.S. movies than French movies, the gap has been narrowing in the last two decades. How do I know? It's the subject of this infographic:  How do I...

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Crazy rich Asians inspire some rich graphics

Kaiser Fung (Junkcharts, Principal Analytics Prep) examines several charts made by New York Times on income distribution among Asian Americans, as the hit movie Crazy Rich Asians dominates the U.S. box office in September.

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Crazy rich Asians inspire some rich graphics

On the occasion of the hit movie Crazy Rich Asians, the New York Times did a very nice report on Asian immigration in the U.S. The first two graphics will be of great interest to those who have attended my free dataviz seminar (coming to Lyon, France in October, by the way. Register here.), as it deals with a related issue. The first chart shows an income gap widening between...

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Finding simple ways to explain complicated data and concepts, using some Pew data

A reader submitted the following chart from Pew Research for discussion. The reader complained that this chart was difficult to comprehend. What are some of the reasons? The use of color is superfluous. Each line is a "cohort" of people being tracked over time. Each cohort is given its own color or hue. But the color or hue does not signify much. The dotted lines. This design element requires a...

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