color

98 posts
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...

0 0
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...

0 0
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

0 0
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

0 0
Start at zero improves this chart but only slightly

The following chart was forwarded to me recently: It's a good illustration of why the "start at zero" rule exists for column charts. The poor Indian lady looks like a midget in this women's club. Is the average Indian woman really half as tall as the average South African woman? (Surely not!) The problem is only superficially fixed by starting the vertical axis at zero. Doing so highlights the fact...

0 0
Distorting perception versus distorting the data

This chart appears in the latest ("last print issue") of Schwab's On Investing magazine: I know I don't like triangular charts, and in this post, I attempt to verbalize why. It's not the usual complaint of distorting the data. When the base of the triangle is fixed, and only the height is varied, then the area is proportional to the height and thus nothing is distorted. Nevertheless, my ability to...

0 0
✚ How to Make Alluvial Diagrams

An alluvial diagram is a type of flow chart that is useful to show change over time. You see how individual categories and how the composition of the categories shift. Incorporate ranking into the mix at each time segment, and you get a good idea of how order changes over time too. The geometry is like a combination of a stacked bar chart and a bump chart. I made a...

0 0
Colors of Bob Ross explored

Connor Rothschild charted all the colors Bob Ross used in The Joy of Painting: Most commonly, paintings have 12 colors. Of the 403 pieces in The Joy of Painting, 100 used 12 colors. The peak is concentrated around 12, meaning most of Ross’ paintings used somewhere in the range of 7-13 colors; very rarely did they venture outside of that range. Grab the data here, which was collected by Jared...

0 0
Reading this chart won’t take as long as withdrawing troops from Afghanistan

Art sent me the following Economist chart, noting how hard it is to understand. I took a look, and agreed. It's an example of a visual representation that takes more time to comprehend than the underlying data. The chart presents responses to 3 questions on a survey. For each question, the choices are Approve, Disapprove, and "Neither" (just picking a word since I haven't seen the actual survey question). The...

0 0
Metaphors, maps, and communicating data

There are some data visualization that are obviously bad. But what makes them bad? Here is an example of such an effort: This visualization of carbon emissions is not successful. There is precious little that a reader can learn from this chart without expensing a lot of effort. It's relatively easy to identify the largest emitters of carbon but since the data are not expressed per-capita, the chart mainly informs...

0 0