> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Wayne Aldo Gavioli > Sent: Tuesday, October 09, 2007 3:37 PM > To: [EMAIL PROTECTED] > Subject: [R] 2 Sample Confidence Interval - Formatting Data? > > > > Hello all, > > I have to run a 2 Sample Confidence Interval on some data; > the command for such > intervals is "confint(...)", but in the help documentation it > says that you > need a "fitted model object" in order to run this command. > What does that > mean? > > The data is very small, it's: > > x=c(8,12,10,14,2,0,0) > y=c(-6,0,1,2,-3,-4,2) > > > and I want to be able to run a Confidence interval for the > difference of two > means (x-bar minus y-bar). Do I have to fit these two pieces > of data into some > kind of object? > > > A little confused, > > > Wayne >
Wayne, You may want to look at ?t.test instead. Hope this is helpful, Dan Daniel J. Nordlund Research and Data Analysis Washington State Department of Social and Health Services Olympia, WA 98504-5204 ______________________________________________ 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.
