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The case against diverging stacked bars
tl;dr: We don’t recommend using diverging stacked bars for showing percentages. The 100% stacked bars are often the better option, especially when it’s important to compare the share of the outermost...
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Why not to use two axes, and what to use instead
Tl;dr: We believe that charts with two different y-axes make it hard for most people to intuitively make right statements about two data series. We recommend two alternatives strongly: using two...
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An alternative to pink & blue: Colors for gender data
JeongMee Yoon’s “The Pink & Blue Project” A few weeks ago, I wrote an article on what to consider when choosing colors for data vis on the Datawrapper blog. In it, I noted that one should avoid...
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What we wrote about in the last year
Welcome! You’re on Chartable, a blog written by a bunch of people who work at Datawrapper, an online charting tool. Almost exactly one year ago, we created this place to talk about charts. Here we...
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The case for choosing clarity over complexity in data visualizations
Hi. This is Zara from Datawrapper. I work as a marketing and customer support intern at Datawrapper and am interested in data visualizations. This is my first blogpost for Chartable after writing the...
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In defense of simple charts
Background: Cover mania by Michele Mauri “There’s a strand of the data viz world that argues that everything could be a bar chart. That’s possibly true but also possibly a world without joy,” Amanda...
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Shirley Wu and Nadieh Bremer on freelancing, finding inspiration, and sharing...
.nadieh { background: #00BCAB; padding: 3px 7px; border-radius: 4px; color: white; font-weight: bold; } .shirley { background: #EE4F81; padding: 3px 7px; border-radius: 4px; color: white; font-weight:...
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It’s time for a more sophisticated color contrast check for data visualizations
A few days ago on the internet, I stumbled upon a person who criticized what I took for granted: The W3C Accessibility Guidelines (WCAG) for color contrast. .aa { color: white; background-color:...
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How to get started with data visualization
.wp-block-group.has-background { padding: 1.2em 1.6em 1.5em 2em; margin:16px 0 0; border-left: 4px solid #D91A5C; background-color: #f6f6f6!important; } Clockwise from top left: Helen Greenwood 2023,...
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Are connected scatterplots so bad?
I recently wrote a Weekly Chart that used a connected scatterplot to visualize population growth and migration rates over the years in Germany. If my first intention was to demonstrate how to create...
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