Hi [EMAIL PROTECTED] napsal dne 04.08.2007 15:04:56: > Hi, > > I am sorry > > > I meant: > > > mod <- lm(y~Worktime+Vacation+Illnes+Bankholidays) > > newdate=data.frame(x=c(324,123,0.9,0.1))
your data frame shall have correct column names (Worktime, Vacation, ...) Regards Petr > predict(mod,newdate) > > And get this error. > > Yours, > > Maja > > > > > -------- Original-Nachricht -------- > Datum: Sat, 4 Aug 2007 04:42:14 -0700 (PDT) > Von: Stephen Tucker <[EMAIL PROTECTED]> > An: "Maja \\"Schröter\\"" <[EMAIL PROTECTED]>, r-help@stat.math.ethz.ch > Betreff: Re: [R] Problems using "lm" in combination with "predict" > > > I think you need > > > > predict(mod,newdate) > > > > instead of > > > > predict(y,newdate) > > > > > > --- "Maja Schröter" <[EMAIL PROTECTED]> wrote: > > > > > Hello everybody, > > > > > > I'm trying to predict a linear regression model but it does not work. > > > > > > My Model: y = Worktime + Vacation + Illnes + Bankholidays > > > > > > My modelmatrix is of dimension 28x4 > > > > > > Then I want to make use of the function predict because there > > > confidence.intervals are include. > > > > > > My idea was: > > > > > > mod <- lm(y~Worktime+Vacation+Illnes+Bankholidays) > > > > > > newdate=data.frame(x=c(324,123,0.9,0.1)) > > > predict(y,newdate) > > > > > > But I always get the message: > > > > > > > > > 'newdata' had 1 rows but variable(s) found have 28 rows > > > > > > > > > What can I do? > > > > > > Yours, > > > > > > Maja > > > > > > -- > > > Psssst! Schon vom neuen GMX MultiMessenger gehört? > > > Der kanns mit allen: http://www.gmx.net/de/go/multimessenger > > > > > > ______________________________________________ > > > R-help@stat.math.ethz.ch 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. > > > > > > > > > > > > > ____________________________________________________________________________________ > > Looking for a deal? Find great prices on flights and hotels with Yahoo! > > FareChase. > > http://farechase.yahoo.com/ > > -- > Psssst! Schon vom neuen GMX MultiMessenger gehört? > Der kanns mit allen: http://www.gmx.net/de/go/multimessenger > > ______________________________________________ > R-help@stat.math.ethz.ch 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@stat.math.ethz.ch 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.
