Centroids and getSpPPolygonsLabptSlots

I have just incidentally learned in the sp doc that 
getSpPPolygonsLabptSlots() actually retrieves the coordinates
of the centroids. The index page of the sp doc just states:
getSpPPolygonsLabptSlots 	Class "SpatialPolygonsDataFrame"

adding a mention to the fact that getSpPPolygonsLabptSlots retrieves the
coordinates of the centroids would be very helpful. Previously, I 
thought I had to convert to a PBSmapping object and use calcCentroid().

Agus

Dr. Agustin Lobo
Institut de Ciencies de la Terra "Jaume Almera" (CSIC)
LLuis Sole Sabaris s/n
08028 Barcelona
Spain
Tel. 34 934095410
Fax. 34 934110012
email: Agustin.Lobo at ija.csic.es
http://www.ija.csic.es/gt/obster