RArcInfo (version 0.3)

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.

References

More information about this kind of data can be found at http://pages.infinit.net/danmo/e00/docs/v7_bin_cover.html.