Network Graph

Network graphs are used to display categorical data relationships.

The demo below displays the relationship between the South Korean domestic flight airports . The nodes represents the airports that are classified into three main categories:
Red color: airports with more than 50 direct destinations.
Yellow color: Airports with more than 10 direct destinations.
Green color: Airports with less than 10 direct destinations.

Nice to know

Pros:

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A Network graph is an appealing and stylish chart.
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A Network graph offers up to three dimensions to display relationships such as the bubbles size, bubbles’ colors, link between bubbles.
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A Network graph has a compact shape that makes it a good chart to fit into dashboards and small screens.

Cons:

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A Network graph could be complex to understand, particularly for a non data literate audience.
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A Network graph with excessive bubbles could be difficult to read.

Accessibility

A Network graph can be accessible to suit visually impaired users. By using common sense to select the right colors and options to highlight nodes and links.

Information

Learn more about how to create network graphs.