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readlinesshape
2007 May 21
1
Graphically show population density for a specific geographic area using R
Hi,
we all know that R is powerful in dealing with graphics.
I am now trying to use R to show some geographic attributes for a
specific geographic area on a graph. For example, if I would like to
generate a graph showing the population densities (in terms of the
intensity of colors) for Illinois State by zip codes. I did some
research; and it seems that package "maptools" is