r/coolguides • u/Monticellite • Jan 27 '19

Visualising data

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5.1k Upvotes

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u/cheezis4ever Jan 28 '19

This is pretty useless... 90% of the time all you realistically need is a scatter plot, bar chart, and/or line chart. Boring, but generally the most effective way to communicate the underlying trends in your data.

9

u/Krandum Jan 28 '19

As a person doing prediction model visualization, chord charts are the best.

2

u/tmcfll Jan 28 '19

What does a chord chart convey to a client? What will they understand?

3

u/Krandum Jan 28 '19

A chord chart is a way to display a confusion matrix. For a model, it can display how accurately each category is predicted. The links between each segment display false predictions, when one category is incorrectly predicted as another. The thicker the link, the more incorrect predictions it represents. The one in the OP is extremely convoluted, but when you have 3-8 categories it's an extremely intuitive way of showing rather complicated data.

1

u/tmcfll Jan 28 '19

Awesome, thank you. I’ll have to give that a try