SINGER cartogram

by Luigi Guarino on March 25, 2007

Following my earlier post about cartograms, here’s one for the germplasm collections catalogued in SINGER, by country of origin. Thanks to Dr Robert Hijmans of IRRI for the birthday present.

{ 4 comments… read them below or add one }

Andy Nelson March 25, 2007 at 12:09 pm

Great stuff.
I would suggest that you include a standard map with the same colours alongside the cartogram to help identify very distorted countries. Would be neat to have the maps linked too, hover the cursor over country A in one map and it get highlighted in both maps.

I always meant to apply it to this type of data too,
http://www.cis.hut.fi/research/som-research/worldmap.html
map regions coloured by similarity and then made into a cartogram

ps. happy birthday?

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Luigi March 26, 2007 at 1:23 pm

Oh yes, a self-organizing map of the SINGER data would be interesting. I suppose something like the Vavilovian Centres of Diversity would come out? I believe Robert has a poverty cartogram, but I’m not sure based on what data.

P.S. Thanks!

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Glenn March 26, 2007 at 3:07 pm

this seems to correlate with the countries of the CG centers….except the Phillipines. You could think that China would be larger. Turkey and Iran stand out.

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Jeremy March 27, 2007 at 6:12 am

Early emergency collecting missions there for wheat and barley?

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