Does anybody know what type of chart that is? (some sort of bubble chart but with links between bubbles)

http://en.wikipedia.org/wiki/File:PageRanks-Example.svg enter image description here

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    $\begingroup$ Typically 'bubble graph' is on an x-y coordinate system with no connections between bubbles. $\endgroup$ Sep 20, 2013 at 12:21

1 Answer 1


I'd just call it a directed graph (digraph) where the nodes have values (fields, attributes) which are expressed as visual attributes (size, color, label). I'm using "graph" in the mathematical sense and not as a synonym for "chart".

Such graphs can be drawn with graphviz, and other software. (Though I'm not sure how to achieve the gaudy 3D effect.)

[Edited once for each comment so far: Greg Snow, whuber, and Henry.]

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    $\begingroup$ Since the connections have a direction (arrows) it could be called a directed graph. $\endgroup$
    – Greg Snow
    Sep 20, 2013 at 21:10
  • $\begingroup$ @GregSnow: Excellent point. I'll edit to add that. $\endgroup$
    – Wayne
    Sep 20, 2013 at 21:34
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    $\begingroup$ What distinction are you making between "directed graph" and "directed network graph"? $\endgroup$
    – whuber
    Sep 20, 2013 at 21:36
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    $\begingroup$ The nodes have values (which determine the size and apparently the colours) $\endgroup$
    – Henry
    Sep 20, 2013 at 22:15
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    $\begingroup$ @whuber: Good point. I've deleted the word "network", but added a sentence to explain that the usage of "graph" (which in popular usage can be synonymous with "chart"). $\endgroup$
    – Wayne
    Sep 20, 2013 at 23:01

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