Smells like homework to me. If so, we don't do homework on this list. -- Bert
On Thu, Feb 14, 2013 at 3:55 PM, email <email8...@gmail.com> wrote: > Hello: > > I have a 4-column dataset: Crime, Education, Urbanization, Age. I want to > construct a multiple linear regression to find the effect of Education, > Urbanization, and Age on Crime" > > lm(Crime ~ Education + Urbanization + Age) > > If I use + in above statement, does it mean it will build a model to find > the relationship between Crime and Education when Urbanization and Age are > held constant? > > What would be the difference if I drop the term Urbanization + Age ? > > lm(Crime ~ Education) > > Regards: > John > > [[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. -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm ______________________________________________ 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.
