Database Reference
In-Depth Information
Canada
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PBS Mapping comes with ABSOLUTELY NO WARRANTY;
for details see the file COPYING.
This is free software, and you are welcome to redistribute
it under certain conditions, as outlined in the above file.
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A complete user guide 'PBSmapping-UG.pdf' is located at
/Library/Frameworks/R.framework/Versions/2.12/Resources/library/ \
PBSmapping/doc/PBSmapping-UG.pdf
To see demos, type '.PBSfigs()'.
Packaged on 2010-06-23
Pacific Biological Station, Nanaimo
> myShapeFile<-importShapefile("tracts2000",readDBF=TRUE)
Loading required package: maptools
Loading required package: foreign
Loading required package: sp
> str(myShapeFile)
Classes 'PolySet' and 'data.frame': 16290 obs. of 5 variables:
$ PID: int 1 1 1 1 1 1 1 1 1 1 ...
$ SID: int 1 1 1 1 1 1 1 1 1 1 ...
$ POS: int 1 2 3 4 5 6 7 8 9 10 ...
$ X : num -75.2 -75.2 -75.2 -75.2 -75.2 ...
$ Y : num 39.9 39.9 39.9 40 40 ...
- attr(*, "PolyData")=Classes 'PolyData' and 'data.frame': 381 obs.
of 9 var...
..$ PID : int 1 2 3 4 5 6 7 8 9 10 ...
..$ ID : Factor w/ 381 levels "1","10","100",..: 1 112 223 316
327 338...
..$ FIPSSTCO: Factor w/ 1 level "42101": 1 1 1 1 1 1 1 1 1 1 ...
..$ TRT2000 : Factor w/ 381 levels "000100","000200",..: 1 2 3 4 5
6 7 8 9 ...
..$ STFID : Factor w/ 381 levels "42101000100",..: 1 2 3 4 5 6 7
8 9 10 ...
..$ TRACTID : Factor w/ 381 levels "1","10","100",..: 1 114 226 313
327 337...
..$ PARK : num 0 0 0 0 0 0 0 0 0 0 ...
..$ OLDID : num 1 1 1 1 1 1 1 1 1 1 ...
..$ NEWID : num 2 2 2 2 2 2 2 2 2 2 ...
