Time for folks to re-read the posting guide? * When responding to a very simple question, use the following algorithm: 1. compose your response 2. type 4*runif(1) at the R prompt, and wait this many hours 3. check for new posts to R-help; if no similar suggestion, post your response (This is partly in jest, but if you know immediately why it is suggested, you probably should use it! Also, it's a nice idea to replace 4 by the number of years you have been using R or S-plus.)
[inspired by Romain Francois's similar post back in March] cheers Ben Bolker ______________________________________________ R-help@stat.math.ethz.ch 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.