From the course: Data Visualization for Data Analysts and Analytics
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Scatterplot mania
From the course: Data Visualization for Data Analysts and Analytics
Scatterplot mania
We know a lot about how the human brain processes visual information. We already talked about our pre-attentive response to visuals. Another fundamental fact about visual perception is that humans are very good at comparing objects positioned along a common axis. In other words, if there are two dots on a line, humans will give very good estimates for which one is further to the left or the right and how much further. In fact, this is when we're at our most precise when comparing things, and we can do this very effectively in two dimensions with scatter plots. So logic might suggest we should just ban all charts that don't use position along a common axis, right? In fact, in 2020, a research paper was published titled "Why Shouldn't All Charts Be Scatter Plots?" The short answer is that precision comparisons aren't always the task to be performed, and even when it is the primary goal, sometimes another chart type might allow less precise comparison, but enables some other task that…
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