On Fri, 13 Jun 2008, andreas.rosenblad(a)ltv.se wrote: > cottrell(a)wfu.edu @ INTERNET skrev 2008-06-11 15:55:14 : > > > Unless anyone has any show-stopping problems to report, I plan to > > release gretl 1.7.5 tomorrow, after doing an OS X build tonight. > > > > Allin. > > I think it looks great. Some comments: > > 1. The normtest command should be accessible also from the GUI. > E.g. Variable > Normality test Yes, that is planned, but I didn't want to introduce yet another new string for translation at this point. > 2. The quantile regression function: When the confidence > intervals cannot be computed (I get a "Not a number in > calculation" warning... Could you send an example where you get the "Not a number" message? It may be there's nothing we can do about that, but it might be worth investigating.

> and I instead let gretl compute the standard errors for a tau > sequence, the graph with confidence intervals for the tau > sequence is still available, giving weird CIs. It's intended that the tau graph is still available -- the idea is that it will be based on +/- so many standard errors. I've experimented with this and got OK results. Could you post an example where the CIs are "weird"?

> Further, for the quantile regression function the Gretl User?s > Guide says that for large data sets, "If you want confidence > intervals in such cases, you are advised not to use the > -- intervals option, but to compute them using the method of > ?plus or minus so many standard errors?." It would be great if > there was an option to automatically compute and print the CI > calculated with this option. E.g. a new radio button in the GUI: > "Compute confidence intervals using normality approximation". OK, that's a possibility for the future. If you select just one tau value you can get such intervals by the usual means (Model window, Analysis, Confidence intervals), but I guess you're talking about the multiple-tau case.