On Thu, 20 Jul 2006, Mihai Nica wrote: > I would have a small question/request. Would it be much too > difficult to somehow emulate the way eviews GUI allows one to > transform data (make calculations) within the models > themselves? [i.e. y c log(z/p) g/a b (c+b) ]. Frankly, the > only reason I use R primarily (which is way beyond my needs > aside the graphic capabilities) is that in gretl I have to > transform data first and then run the analysis, and so on Am > I making any sense :-)?
You're making sense, if you mean to request that transformations of variables could be written into a model specification. However, I would dispute that this is a "GUI" feature: it requires typing the model specification. The gretl GUI model dialog doesn't require (or allow) any typing of the model spec. Perhaps you might find the gretl console suits your needs better? (Or a script for that matter.) You can't at present put transformations into a model spec (other than lags or list-creating commands), but it's not much more bother to type genr z = log(x/p) ols y 0 z then to type ols y 0 log(x/p) is it? Also, in current gretl Alt-x brings up a command minibuffer, though this needs a little more work to make it fully functional. Allin Cottrell
