I don't understand the context of the question. Since the data is already in R, you should use it from within R. What is the reason for translating it to XML and then back? You take the risk of two levels of distortion.
I am guessing that you want continuity of your work over multiple login sessions. One technique for continuity is to save your workspace at the end of each login. Do that by saying "yes" to the save question when you type q(). The next time you start R from the same directory, the saved workspace will be re-loaded. See ?q and ?save for details. Rich ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.