GNU R support for producing geographic maps
This package provides facilities for easily producing maps based on
data sets in the GNU R statistical computing environment.
The r-cran-maps package includes map data for the United States
(including state and county-level maps), New Zealand, and a world
map; additional maps (including a higher-resolution world map) are
available in the suggested r-cran-mapdata package.
The suggested, non-free r-cran-mapproj package adds facilities for
calculating geographic projections, which are used by mapmakers to
compensate for the inaccuracies inherent in projecting a spheroid's
surface onto a two-dimensional plane.
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