Hi Edna, I am not sure the completely right answer, but I suspect that you use data(df) to invoke a data.frame from the sample datasets provided from the packages available on your R system. By other side, if you have a data.frame loaded on your environent, you can use "attach" do turn the columns available on your environment as objects, like this.
my.df<-data.frame(cbind(x=runif(100), y=rnorm(100))) head(my.df) plot(y~x) #you get error attach(my.df) plot(y~x) #you get the plot detach(my.df) # remove the x,y objects from your environment plot(y~x) #you get error again. I hope this help. Cheers, miltinho astronauta brazil On 7/22/08, Edna Bell <[EMAIL PROTECTED]> wrote: > > Hi! > > What is the difference between using data(somedataset) vs. > attach(somedataset), please? > > thanks, > Edna Bell > > ______________________________________________ > 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. > [[alternative HTML version deleted]] ______________________________________________ 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.
