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acgourley 1223 days ago | link | parent

Am I reading it right? R generated that?


pragetruif 1223 days ago | link

The visualization definitely wasn't done in R. I'm guessing he used Gephi (see, for example, http://gephi.org/2010/map-geocoded-data-with-gephi/).

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bajsejohannes 1223 days ago | link

How can you tell that it definitely was not done in R? He says

> As a sanity check, I plotted points at some of the latitude and longitude coordinates. To my relief, what I saw was roughly an outline of the world.

His plot doesn't "know" about the world - he is just drawing curves between points in a plane (lat. and long.). I haven't used R, but I am sure that would be possible.

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pragetruif 1222 days ago | link

Because I use R quite often, and R just doesn't produce graphs that look like that :).

But yes, it's probably possible to draw an uglier version of the visualization. (I know you can draw the individual points on the plane, so drawing lines between points is probably available as well, though I'm not so sure about the great circles part.)

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bajsejohannes 1221 days ago | link

Ok. I believe you :) It just seemed simple enough that anything that could do graphics would be able to do it.

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miguelrios 1223 days ago | link

I bet you Gephi cannot handle more than tens of thousands of node.

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chunkbot 1223 days ago | link

You're surprised? Why?

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gloob 1223 days ago | link

I can't speak for the poster you're responding to, but if it's easy to make things that pretty in R, I suddenly want to learn it.

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acgourley 1223 days ago | link

My experience with R is that it generates much more... utilitarian output.

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marcinw 1223 days ago | link

We're all wondering what he used to visualize his data set.

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nonfamous 1217 days ago | link

Yes, it was R. The author explains: http://paulbutler.org/archives/visualizing-facebook-friends/

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