Hi, On Friday 25 September 2009, Michael Ash wrote: > An easy way to substantially expand the functionality of rkward would > be to enable access to the Zelig package. Zelig is itself an umbrella > interface to many of the statistical models in R. See > http://gking.harvard.edu/zelig/. Instead of laboriously coding > interface for lots of models (lm, glm, etc., etc.) rkward could simply > code Zelig.
I admit I only took a *very* short look so far, and did not quite figure out what Zelig really does (lm, glm, lmer, and friends are already designed to have a very similar interface out of the box, and the differences in parameters and methods are mostly confined to the actual conceptual differences of the models. So if Zelig tries to abstract the differences, then what does it abstract?). Well, I guess I'll need to take a better look, this was just my first glance. I'm just writing this mail to give you an answer to your question below, now, as I probably won't get around to writing mails on the weekend. > I'd be pleased to work on the interface. Where, btw, is the "simple > regression" menu in rkward, which I hope to use as a template. We have Analysis->Regression->Linear Regression (plugins/analysis/regression/linear_regression.*). If you go to Settings- >Configure RKWard->Plugins and add the "under_development.pluginmap", you'll also get Analysis->Simple Anova (plugins/simple_anova/*). That is unfinished, but is likely interesting for its use of the <formula> element, which allows to construct basic interaction terms. Regards Thomas
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