On Wed, 02 Dec 2009 16:52:23 +0800 Zhijiang Wang <ivoryto...@emails.bjut.edu.cn> wrote: > Dear All, > 1. why did the problem happen? > 2. How to solve it?
A good start would be to follow the advice at the bottom of every posting on this mailing list: PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Karl Ove Hufthammer ______________________________________________ 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.
