state.vbm: US State Visibility Based Map
In spData: Datasets for Spatial Analysis

state.vbm

R Documentation

US State Visibility Based Map

Description

A SpatialPolygonsDataFrame object to plot a Visibility Based Map.

Usage

state.vbm

Format

An object of class SpatialPolygonsDataFrame with 50 rows and 2 columns.

Details

A SpatialPolygonsDataFrame object to plot a map of the US states where the sizes of the states have been adjusted to be more equal. This map can be useful for plotting state data using colors patterns without the larger states dominating and the smallest states being lost. The original map is copyrighted by Mark Monmonier. Official publications based on this map should acknowledge him. Comercial publications of maps based on this probably need permission from him to use.

Author(s)

Greg Snow greg.snow@imail.org (of this compilation)

Source

The data was converted from the maps library for S-PLUS. S-PLUS uses the map with permission from the author. This version of the data has not received permission from the author (no attempt made, not that it was refused), most of my uses I feel fall under fair use and do not violate copyright, but you will need to decide for yourself and your applications.

References

http://www.markmonmonier.com/index.htm, http://euclid.psych.yorku.ca/SCS/Gallery/bright-ideas.html

Examples

if (requireNamespace("sp", quietly = TRUE)) {
  library(sp)
  data(state.vbm)
  plot(state.vbm)

  tmp <- state.x77[, 'HS Grad']
  tmp2 <- cut(tmp, seq(min(tmp), max(tmp), length.out=11),
            include.lowest=TRUE)
  plot(state.vbm, col=cm.colors(10)[tmp2])
}

spData documentation built on Sept. 11, 2024, 5:36 p.m.