[Gretl-devel] translation questions

Hi, I'm catching up on the German translation and have some doubts. 1) what's the context/meaning of these terms: Left-unbounded observations Bounded observations Point observations 2) Is 'interval regression' a new method/feature? (I'm not familiar with it.) 3) what about the names for gnuplot line styles? wasn't there a discussion to keep them in English? 4) apart from a lot of 'lower/upper bound' stuff there was also something about 'lower/upper limit'. are these unrelated? thanks, sven