sp (version 1.6-1)

spChFIDs-methods: change feature IDs in spatial objects

Description

When the feature IDs need to be changed in SpatialLines* or SpatialPolygons* objects, these methods may be used. The new IDs should be a character vector of unique IDs of the correct length.

Methods

obj = "SpatialLines", x = "character"

replace IDs in a SpatialLines object

obj = "SpatialLinesDataFrame", x = "character"

replace IDs in a SpatialLinesDataFrame object

obj = "SpatialPolygons", x = "character"

replace IDs in a SpatialPolygons object

obj = "SpatialPolygonsDataFrame", x = "character"

replace IDs in a SpatialPolygonsDataFrame object

Author

Roger Bivand

See Also

spCbind-methods, spRbind-methods

Examples

if (FALSE) {
require(maptools)
xx <- readShapePoly(system.file("shapes/sids.shp", package="maptools")[1], 
  IDvar="FIPSNO", proj4string=CRS("+proj=longlat +ellps=clrk66"))
row.names(as(xx, "data.frame"))
xx1 <- spChFIDs(xx, as.character(xx$CNTY_ID))
row.names(as(xx1, "data.frame"))
}