shp2bnd {BayesX}R Documentation

convert a shape-file into a boundary object

Description

Converts the geographical information provided in a shape-file into a boundary object (see Ch. 5 of the Reference Manual)

Usage

shp2bnd(shpname, regionnames, check.is.in = TRUE)

Arguments

shpname

Base filename of the shape-file (including path)

regionnames

Either a vector of region names or the name of the variable in the dbf-file representing these names

check.is.in

Test whether some regions are surrounded by other regions (FALSE speeds up the execution time but may result in a corrupted bnd-file)

Value

Returns a boundary object, i.e. a list of polygons that form the map. See read.bnd for more information on the format.

Author(s)

Felix Heinzl, Daniel Sabanes Bove, Thomas Kneib with contributions by Michael Hoehle and Frank Sagerer

References

BayesX Reference Manual. Available from http://www.bayesx.org

See Also

write.bnd,drawmap,read.bnd

Examples

## read shapefile into bnd object
shpName <- sub(pattern="(.*)\\.dbf", replacement="\\1",
               x=system.file("examples/northamerica_adm0.dbf",
                             package="BayesX")) 
north <- shp2bnd(shpname=shpName, regionnames="COUNTRY")

## draw the map
drawmap(map=north)

## compare with shipped bnd file
shippedBnd <- read.bnd(system.file("examples/northamerica.bnd", package="BayesX"))
stopifnot(all.equal(north, shippedBnd))

[Package BayesX version 0.3-1 Index]