I am running a regression: ols.reg1 <- lm(y ~ x1 + x2 + x3 + x4)
on a data.frame and then generating fitted values: y.hat <- ols.reg1$fitted.values Then I would like to add these fitted values to the data.frame as a new variable. The problem is that when the values are predicted the resulting output has too few rows. for some reason certian observations do not get predicted values. So this shrinks the column down and I then cannot combine the output into the original data.frame. If someone could please help I would apreciate it. Stata automatically adds a new column to the data set when you find the fitted values. So having to fight with R just to do something I used to routimely do has made me think of turning back to the dark side. I hope I have just missed something trival in all the help files I have been looking through. Thanks, -- Robi Ragan Graduate Student Department of Economics Department of Political Science The University of Georgia ______________________________________________ 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.