Specifying xlim or ylim in the mapCountryData function of the rworldmap library do not alter the plotting region on my system. #Using the example from rworldmap library(rworldmap) mapCountryData() #uses the sample dataset mapCountryData(ylim = c(-45,45)) #makes no difference to the plot R 2.14.1 on Linux Mint 11 64bit. Thanks, Dan ________ Dr Dan Bebber Head of Climate Change Research, Earthwatch Institute, 256 Banbury Road, Oxford OX2 7DE, UK Research Fellow in Biology, St. Peter's College, University of Oxford Tel. +44 (0)1865 318842, Mob. +44 (0)7729 167502, Fax. +44 (0)1865 318824, skype danbebber, email dbebber at earthwatch.org.uk, web http://www.earthwatch.org/europe This e-mail (and any attachments) is confidential and may contain personal views, which are not the views of Earthwatch Institute Europe unless specifically stated. If you have received it in error, please delete it from your system, do not use, copy or disclose the information in any way nor act in reliance on it and notify the sender immediately. Please note that Earthwatch Institute (Europe) monitors e-mails sent or received. Further communication will signify your consent to this.Conservation Education & Research Trust also known as Earthwatch Institute (Europe) is a company limited by guarantee and registered in England and Wales under company number 4373313 and charity number 1094467. The registered address is, Mayfield House, 256 Banbury Road, Oxford, OX2 7DE England.