11 Visualization
Data analysis, as you’ve seen throughout this book, is largely about numbers. A typical pandas data frame contains columns and rows full of numbers, and data analysis involves lots of mathematical methods and statistical techniques.
That’s fine, except that we humans are typically bad at understanding large collections of numbers. We’re generally much better at comprehending visual depictions of numbers, especially if we’re trying to understand relationships among our data. So, although we often think of visualization as a way to explain technical ideas in simple terms to non-experts, the fact is that visualization can also be helpful for the experts working on a problem. Seeing a chart or graph can help us put the numbers in ...
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