Dear list, I am currently writing up some of my R models in a more formal sense for a paper, and I am having trouble with the notation. Although this isn't really an 'R' question, it should help me to understand a bit better what I am actually doing when fitting my models!
Using the analysis of co-variance example from MASS (fourth edition, p 142), what is the correct notation for the formula "Gas, ~ Insul/Temp - 1"? Obviously, if we fit it as two separate models (as in the example above it), we would have something like y_i = \beta x_i for each of the two models. So my question is, when we have a single model with a k-level factor interaction term as in the equation above, what is the correct/standard statistical (LaTeX style) notation? Cheers, Carson ______________________________________________ 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.
