spRbind-methods
From maptools v0.9-9
by Roger Bivand
rbind for spatial objects
spRbind
provides rbind-like methods for Spatial*DataFrame objects
Note
In addition to the spRbind
-methods, there are also
rbind
-methods for Spatial* objects. The differences are:
spRbind
-methods can bind 2 objects, whereasrbind
-methods can bind multiple objectsome
rbind
can accept objects with duplicated IDs, for allspRbind
-methods these have to be modified explicitly, e.g. by callingspChFIDs-methods
Methods
- obj = "SpatialPoints", x = "SpatialPoints"
rbind two SpatialPoints objects
- obj = "SpatialPointsDataFrame", x = "SpatialPointsDataFrame"
rbind two SpatialPointsDataFrame objects
- obj = "SpatialLines", x = "SpatialLines"
rbind two SpatialLines objects
- obj = "SpatialLinesDataFrame", x = "SpatialLinesDataFrame"
rbind two SpatialLinesDataFrame objects
- obj = "SpatialPolygons", x = "SpatialPolygons"
rbind two SpatialPolygons objects
- obj = "SpatialPolygonsDataFrame", x = "SpatialPolygonsDataFrame"
rbind two SpatialPolygonsDataFrame objects
See Also
Examples
# NOT RUN {
xx <- readShapePoly(system.file("shapes/sids.shp", package="maptools")[1],
IDvar="FIPSNO", proj4string=CRS("+proj=longlat +ellps=clrk66"))
summary(xx)
xx$FIPSNO
xx1 <- xx[xx$CNTY_ID < 1982,]
xx2 <- xx[xx$CNTY_ID >= 1982,]
xx3 <- spRbind(xx2, xx1)
summary(xx3)
xx3$FIPSNO
# }
Community examples
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