Hi,

I'm just starting to learn map drawing, so I do apologise if the
questions are very simple.

I've downloaded 
	Local Government Area ASGC Ed 2010 Digital Boundaries in MapInfo
Interchange Format 
	Local Government Area ASGC Ed 2010 Digital Boundaries in ESRI
Shapefile Format 

From
http://www.abs.gov.au/AUSSTATS/abs@.nsf/DetailsPage/1259.0.30.001July%20
2010?OpenDocument , and unzipped them into a directory.  I then tried:
	> library(rgdal)
	> foo <- readOGR(dsn = "D:/Documents and Settings/kevinwang/My
Documents/SMS/ASGC", layer = LGA10aAust)
	Error in nchar(layer) : object 'LGA10aAust' not found

Unfortunately I don't quite understand what the error message means.

My questions:
*	Does anyone know a good reference where I can learn the basics
of mappings in general (e.g. what's a shapefile?  Difference bewteen
MapInfo and ESRI...etc)
*	Is R better at handling MapInfo or ESRI?
*	Is there a good reference (book or online article) on drawing
maps in R?  I found http://medipe.psu.ac.th/~edward/R/MapTools.pdf but
can't seem to see the read.shape() function in maptools package.

Thanks in advance for the help!  I'm looking forward to do some maps in
R :).

Cheers
Kevin



Kevin Wang
Senior Adviser, Government Advisory Services
Advisory

KPMG
10 Shelley Street
Sydney  NSW  2000  Australia

Tel 	+61 2 9335 8282
Fax	+61 2 9335 7001
Mob	0404 518 301
kevinwang@kpmg.com.au <mailto:kevinwang@kpmg.com.au > 

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