color

148 posts
Visualizing fertility rates around the globe

The following chart dropped on my Twitter feed. It's an ambitious chart that tries to do a lot. The underlying data set contains fertility rate data from over 200 countries over 20 years. The basic chart form is a column chart that is curled up into a ball. The column chart is given colors that map to continents. All countries are grouped into five continents. The column chart can only...

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Charts that ask questions about the German election

In the prior post about Canadian elections, I suggested that designers expand beyond plots of one variable at a time. Today, I look at a project by DataWrapper on the German elections which happened this week. Thanks to long-time blog supporter Antonio for submitting the chart. The following is the centerpiece of Lisa's work: CDU/CSU is Angela Merkel's party, represented by the black color. The chart answers one question only:...

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Ridings, polls, elections, O Canada

Stephen Taylor reached out to me about his work to visualize Canadian elections data. I took a look. I appreciate the labor of love behind this project. He led with a streamgraph, which presents a quick overview of relative party strengths over time. I am no Canadian election expert, and I did a bare minimum of research in writing this blog. From this chart, I learn that: the Canadians have...

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Working hard at clarity

As I am preparing another blog post about the pandemic, I came across the following data graphic, recently produced by the CDC for a vaccine advisory board meeting: This is not an example of effective visual communications. *** For one thing, readers are directed to scour the footnotes to figure out what's going on. If we ignore those for the moment, we see clusters of bubbles that have remained pretty...

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Simple charts are the hardest to do right

The CDC website has a variety of data graphics about many topics, one of which is U.S. vaccinations. I was looking for information about Covid-19 data broken down by age groups, and that's when I landed on these charts (link). The left panel shows people with at least one dose, and the right panel shows those who are "fully vaccinated." This simple chart takes an unreasonable amount of time to...

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Ranking data provide context but can also confuse

This dataviz from the Economist had me spending a lot of time clicking around - which means it is a success. The graphic presents four measures of wellbeing in society - life expectancy, infant mortality rate, murder rate and prison population. The primary goal is to compare nations across those metrics. The focus is on comparing how certain nations (or subgroups) rank against each other, as indicated by the relative...

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One of the most frequently produced maps is also one of the worst

Summer is here, many Americans are putting the pandemic in their rear-view mirrors, and gas prices are soaring. Business Insider told the story using this map: What do we want to learn about gas prices this summer? Which region has the highest / lowest prices? How much higher / lower than the national average are the regional prices? How much has prices risen, compared to last year, or compared to...

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Did prices go up or down? Depends on how one looks at the data

The U.S. media have been flooded with reports of runaway inflation recently, and it's refreshing to see a nice article in the Wall Street Journal that takes a second look at the data. Because as my readers know, raw data can be incredibly deceptive. Inflation typically describes the change in price level relative to the prior year. The month-on-month change in price levels is a simple seasonal adjustment used to...

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Find a color palette based on words

PhotoChrome is a straightforward tool that lets you use search terms to find a color palette. Just enter a query, and it spits out a color scheme of hex values based on matching images. It’s like Picular from a few years ago but more focused with a copy-paste. Tags: color, images, words

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Average color of geographic areas

Based on satellite imagery, Erin Davis found the average color of places around the world. The above is by county in the United States, but Davis also made maps by country, which are a mix of greens, browns, and yellows. See also the NYT piece from 2020, which framed color by political leaning. Tags: color, Erin Davis, R, satellite imagery

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