US Census 2000 Tract Level Shapefiles and Additional Demographic Data CRAN Task View: Spatial (http://CRAN.R-project.org/view=Spatial) US 2000 Census Tract shapefiles and additional demographic data from the SF1 100 percent files. This data set contains polygon files in lat/lon coordinates and the corresponding demographic data for a number of different variables. Software Depends: R (>= 2.10), maptools, sp, foreign, methods, grDevices, base, stats, utils Zack W. Almquist <almquist@uci.edu> Zack W. Almquist <almquist@uci.edu> GPL (>= 2) 2010-02-24 application/tgz http://CRAN.R-project.org/package=UScensus2000tract