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RArcInfo (version 0.4-12)
get.cntdata: Function for importing the contents of a CNT file into R
Description
This function reads and imports into R the contents of a polygon centroid information file.
Usage
get.cntdata(datadir, coverage, filename="cnt.adf")
Arguments
datadir
Directory under which all the coverages and a directory called 'info' are.
coverage
The name of the coverage we want to work with.
filename
The name of the file in the coverage directory that stores the data (usually called 'cnt.adf').
Value
This functions returns a list with two elements. The first one is a data frame with the next fields (columns):
PolygonID
The polygon itself.
CoordX
An array with the X coordinates of the centroid.
CoordY
An array with the Y coordinates of the centroid.
NLabels
The number of labels this polygon has.
The second element in the list is an array with the label identifiers related to this polygon.