The RATS Software Forum

Hi, Is it possible to change the graphic resolution in RATS? I want to save the generated graphics with a high quality, as high as possible. Thanks for your consideration.

Hi, I am making a scatterplot and I find that there is a horizontal/vertical line across zero when the range of the axis series covers zero. I am wondering if I could remove the zero line. Thanks a lot.
Here is such an image.

I see. Much appreciated for your patient explanations.

Thanks. Take my dataset as an example. I find the unconstrained (global) optimum gives an estimate of 1.4, and then I would like to constrain it within [1.6, 1.7]. You told me the constrained optimum has to be at one of the end points if ... and I do find that it is at 1.6. But I was also wondering ...

though that's probably overkill in this case since the global (constrained) optimum will be at 1.6. (It has to be at one of the end points if the unconstrained optimum isn't inside the interval.) Hi Tom, Why does it have to be at one of the end points? This sounds like the optimization of a monoton...

Thanks for your timely reply. This sounds like exactly what I need. The transition variable s I am using is actually the variable x. I scatter y versus x (vertical versus horizontal axis) and find there could be a natural break at 1.6 in their relationships. But the nlls gives me 1.3, in which case ...

Dear all, I am trying to estimate a logistic smooth transition model. Is there any way allowing me to restrict the nlls estimate of the threshold value c within a specific range (e.g. [1.6, 1.7] )? My transition variable has a range of [1.0, 2.2]. Right now I just restrict the initial value of c wit...