Visualization of epidemiological information using area cartograms or density-equalized maps. C.P.D. Birch Centre for Epidemiology & Risk Analysis, Veterinary Laboratories Agency – Weybridge, Surrey, UK. Introduction. Land area is irrelevant to many epidemiological presentations.
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Centre for Epidemiology & Risk Analysis,
Veterinary Laboratories Agency – Weybridge,
Unit = area
This may be how ex-President Bush would like us to see the
2004 US Presidential
Unit = voters
This is a better
representation of how
The US population voted.
M. T. Gastner, C. R. Shalizi, and M. E. J. Newman (2004)
- without cartogram
- using cartogram
Birch, C.P.D. (2008)
Birch, C.P.D., Chikukwa, A.C., Hyder, K., Del Rio Vilas, V.J. (2009)