Thursday, April 3, 2014

Accumulation Plot (Lorenz Curve)

http://www.caida.org/research/policy/geopolitical/bgp2country/ipv6.xml

The accumulation plot also know as Lorenz Curve is a type of geovisualization. This geovisualization plot is used to organize and display geographic information. In an accumulation plot there is a straight diagonal line such as the purple one in the plot above that represents how the data would be graphed if the distribution (in this case of GDP and IP addresses) was equal. The black (GDP), red (IPv6), and blue (IPv4) lines are the Lorenz Curves that portray the actual distribution. Because of the inequality of distribution the plot is showing a downward bending for each of the Lorenz Curves. As the distribution becomes more unequal the larger the bend in the line becomes. This plot shows that GDP is the most equally distributed resource across the percentage of population for these countries while IPv4 is the least equally distributed resource.


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