10
Visualization Libraries
The greatest value of a picture is when it forces us to notice what we never expected to see.
John Tukey
In This Chapter
Visualizing data is essential to exploring and presenting data. The saying “a picture is worth a thousand words” certainly applies to understanding data. You can often gain insights from visualizations that are not obvious from summary statistics. The statistician Francis Anscombe famously created four data sets whose summary statistics were nearly identical but that varied greatly when plotted.
Explaining your data is also often easier when you have visuals. Think about how effective ...
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