You should look up what a t-test is. Michael
On Mon, Apr 9, 2012 at 2:58 AM, ali_protocol <mohammadianalimohammad...@gmail.com> wrote: > I am interested in the difference of 2 data: > > mat1= c(2.2, 2.3, 2.2,2.5) > mat2= c(2.6, 2.8, 2.7,2.4) > > mat= mat2-mat1 > > I perform an action on both mat1 and mat2, and I get > mat1prime and mat2prime: > > mat1prime= c(2.5, 2.5, 2.3,2.5) > mat2prime= c(2.6, 2.8, 2.7,2.6) > > matprime= mat2prime-mat1prime > > > I want to check wether mat and matprime have the same mean. > How should I do this in R? > > -- > View this message in context: > http://r.789695.n4.nabble.com/Comparing-2-means-pls-help-tp4542237p4542237.html > Sent from the R help mailing list archive at Nabble.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.