GDPR: justice for data visualization
Jan 29, 2019
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 the slope of each line segment is what the designer wants it to be!
The straight edges of the area chart imply that there were only three data points, with straight lines drawn between each measurement. Sadly, the month labels are not aligned to the data on the line.
Lastly, the dots between May and November intended to facilitate reading this chart backfire. There are 6 dots dividing the May-Nov segment when there should only be five.
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The chart looks like this when not distorted:
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