MAmap | R Documentation |
A map of the outline of MA in SpatialPolygonsDataFrame format, converted from an ESRI shapefile using the readShapePoly
function in the maptools package.
data(MAmap)
The format is class SpatialPolygonsDataFrame (package "sp").
Lambert conformal conic projection for the State of Massachusetts, using standard parallels 41.71666667 and 42.68333333. The latitude of origin is 41.0, the central meridian is -71.5, and the projection units are meters (False Easting: 200000 m; False Northing: 750000 m).
Dr. Veronica Vieira, University of California, Irvine
data(MAmap)
plot(MAmap)
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