Rolf, thanks for the reply, i see now. On Nov 8, 2007 11:43 AM, Rolf Turner <[EMAIL PROTECTED]> wrote: > > > On 8/11/2007, at 4:26 PM, envisage wrote: > > > hi, I am reading Modern Applied Statistics with S 4th ed。 > > page4 have these two lines: > >> library(MASS) > >> data(chem) # needed in R only > > but I find withou the line " data(chem)" > > I can still access chem, isn't it? > > is it unnecessary or something i missed here? > > thanks for the replay in advance. > > I don't think you're missing anything. It appears that things have > changed > and that ``chem'' has become what Prof. Ripley refers to as a ``first > class > object'' in the MASS package. That is it's ``there''. > > If you start R and execute > > library(MASS) > ls(2) > > you will see ``chem'' amongst the names listed. > > cheers, > > Rolf Turner > ###################################################################### > Attention: > This e-mail message is privileged and confidential. If you are not the > intended recipient please delete the message and notify the sender. > Any views or opinions presented are solely those of the author. > > This e-mail has been scanned and cleared by MailMarshal > www.marshalsoftware.com > ###################################################################### > > ______________________________________________ > 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. >
______________________________________________ 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.
