Re: [Gretl-users] A critical bug and a feature request

On Thu, 24 Sep 2009, Talha Yalta wrote: > I have been testing the improvements for model windows under changing > subsampling options. Thanks to Allins recent work, this functionality > looks very nice and works smoothly in general. I also have some > suggestions and bugs to report: > > 1)- In the Edit menu for the model window, it could be useful to add > an option such as "restore model sample" to quickly reverting to the > subsample used by that model. > Could be nice, not very high priority. > 2)- I understand disabling forecasts but don't see why gretl disables > saving the residuals, fitted values etc. from a model just because the > current subsample is different. I think it is perfectly OK to save the > residuals based on the model subsample with the outside observations > having missing values After all, this is what gretl does when the > current subsample happens to match the model subsample. > This is problematic if the model was estimated on a subsample and the dataset is also currently subsampled, but in a different way from the model. But some possibilities may be worth exploring. > 3)- A Bug: I have 2 models one is with n=100 and based on a dummy, > while the other is using a random subsample with n=200. After > estimating the second model, I return to the first one and gretl asks > me if I want to restore the sample. I say yes and now the sample size > is 60 instead of 100 (probably because gretl took the observations > only from the active random subsample of n=200 instead of the full > sample)... > Thanks for the report; fixed in CVS. > 4)- The subsampling info at the bottom of the gretl main window could > use some improvements. For example, when the sub sample is based on a > dummy, instead of just saying "current sample n = 100" it would be > nice if gretl said something like: "current sample based on dummy > <varname> (n = 100)" (The same thing for other subsampling options > such as random subsamples etc.) > Too much information to print at the bottom of the window. I've added a menu item /Sample/Show status which shows some more detail than the bottom-of-the-screen line. It doesn't yet show a sampling criterion or anything of that sort -- that could maybe be added later (it would require recording more dataset information than we currently record).

> I also have some other small bugs to report: > > 6)- Opening a new data set, all open windows are closed except for the > gnuplot graphs. > OK, that could cause trouble in some cases. The graph windows should now close too. > 7)- In the model specification window, when the "Set as default" > option is checked, it becomes unchecked the next time (although the > dependent variable is set correctly and as expected) > OK, cosmetic. Will be fixed at some point. > 8)- My system is Turkish and when I use gretl in English, the legend > for the OLS fitted line still uses commas as the decimal seperator. > I'm not in a position to test that. Do other people see that too? (I.e. you're in a locale that uses the decimal comma, but you use the GUI selector to run in English: what decimal separator character do you see?)

> 9)- Also, when using gretl in Turkish, entering formula for a new line > I need to use dot as the decimal seperator. If I use the comma sign in > the formula, gretl draws a wrong line and a differently wrong legend. > I think this issue was fixed a while ago. > I'm pretty sure that's as it always has been. The string is fed straight to gnuplot and you have to use '.' as decimal separator. Allin. _______________________________________________ Gretl-users mailing list Gretl-users(a)lists.wfu.edu http://lists.wfu.edu/mailman/listinfo/gretl-users