I have contacted the author of the contrast package, but received no reply. Could somebody that I have the experience on this package give me some hint.
In the vignette of the package, I only see example to compute contrasts between 2 cells. Is there a way to compute the contrast between more than 2 cells. For example, is there a way to compute the contrast indicated by beta_3 (on page 4 of the vignette), which is a linear combination of the 4 cell means. Is there a way to use your contrast() function to compute this contrast? ______________________________________________ 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.
