Dear Hanen, You don't need "1" in your R code. Try this:
# Model mymodel<-lm(y~x1+x2) # Coefficients summary(mymodel) See also ?lm. Thanks, Jorge On Thu, May 29, 2008 at 5:15 PM, hanen <[EMAIL PROTECTED]> wrote: > > hi, > > > my linear model is y=c+a*x1+b*x2 i tried to found a, c, b by the use of: > > mymodel<-lm(y~1+x1+x2) where y, x1, x2 are 3 vectors with the same length > > the result is a=NA.so i want to know where is the problem. > -- > View this message in context: > http://www.nabble.com/lm%28%29-function-tp17546079p17546079.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > [email protected] 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]] ______________________________________________ [email protected] 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.
