There is a considerable difference: model.response is documented to work on a model frame. Why does model.response(model.frame(object))) not work in the generality you need?
Please give us some examples of why you are trying to do, and how you would envisage a generic model.response being documented. (It is currently documented as equivalent to model.extract(,"response").) On Fri, 28 Oct 2005, Kosuke Imai wrote: > Dear R contributors, > Gary King, Olivia Lau (both at Harvard) and I are working on an R > package where we are trying to write functions equivalent to > model.frame(), model.matrix(), and model.response() for multiple equations > models (i.e., models that require the specification of multiple formulae). > However, we noticed that while model.frame() and model.matrix() are > generic functions, model.response() is not. It would be nice if > model.response() is also a generic function so that we can make use of the > same function name for a large class of models we are working on. Is there > any possibility that this change can be made in the future version of R? > Thank you very much for your consideration in advance, > Kosuke -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
