readBardImage {BARD} | R Documentation |
These are convenience functions to read and write BARD data as R images. This
uses the native R image format, which is fast to read and to write. For a more
portable, but slower approach see importBardShape
readBardImage(filen) writeBardImage(filen, basemaps=NULL, plans=NULL)
filen |
Name (and path to) file to be read or written |
basemaps |
List of BARD basemaps to be written |
plans |
List of BARD plans to be written |
Read method returns:
plans |
list of plans |
basemaps |
list of basemaps |
Write method returns logical success, invisibly.
Micah Altman Micah_Altman@harvard.edu http://www.hmdc.harvard.edu/micah_altman/
Other methods for readBardCheckpoint
, writeBardCheckpoint
,
importBardShape
, exportBardShape
# read in a shapefile with demographic data suffolk.map <- importBardShape( system.file("shapefiles/suffolk_tracts.shp", package="BARD")) # choose number of districts ndists <- 5 # create some initial plans kplan1 <- createKmeansPlan(suffolk.map,ndists) kplan2 <- createKmeansPlan(suffolk.map,ndists) # read and write images writeBardImage(paste(tempdir(),"/image1",sep=""), basemaps=list(suffolk.map),plans=list(kplan1,kplan2)) tmp.image<-readBardImage(paste(tempdir(),"/image1",sep=""))