Dear Paul.

Thank you very much for your care and answer.

It is true the difference between 4.x and 3.x about the default fitting status of the parameters. In fact it is clear from the tutorial, that only ready to fit parameters can be constrained.

For me is enough...I should only pay more attention !!!!.

I also sent to the user forum a comment/question about the way to suggest the developers the incorporation of other features to the program.

In fact, the point is the possibility to introduce soft boundaries and soft constrains for the parameters and more complex constrains and relationships between them.

If you think there is a possibility to discuss the point, I will be glad to give more details.

Thank you in advance.

Marcelo

El 2 sept. 2017 1:53 PM, "Paul Butler" <butlerpd@...4...> escribió:

Hi Marcelo,

Sorry for the delayed response and thank you for your feedback.  Addressing your two issues

1) After investigating this is not so much a bug it turns out as failure to make usage clear so thank you for bringing to our attention.  Basically the drop-down will only show parameters of the model that were selected to fit (i.e. checked in the appropriate fitting panel).  I have tested 4.1.2 on windows 10 and it does seem to work properly.  However the default when loading a model is for all parameters to be unchecked so unless you deliberately check at least one parameter (in model 1 in your case) you will see nothing in the drop-down (of M1 in your case).  If you go back and check at least one parameter for fitting (probably FitPage 1 in your case?) you should then see that parameter in the dropdown.

I'm thinking a statement in the fit constraints section indicating this to be the case would be appropriate?

2) This is a "known behavior" that some (many?) of us had forgotten so thank you for reminding us.  I will make sure it is made a high priority ticket.  However, this is only true for the LM optimizer. if you chose any of the other four optimizers for the fitting, those limits should be respected.  Please let us know if that is not the case.

Thanks again for the feedback and hope this helps a little

Cheers

Paul

On Thu, Aug 31, 2017 at 1:48 PM, Marcelo Ceolin <mrceolin@...6...> wrote:

Dear Developers of SASVIEW

I would like to report two bugs I found using the WINDOWS 4.1.2 release of SASVIEW

1) during the setup of SIMULTANEOUS fit and after selecting files to be fitted and activated the ADD CONSTRINS mode, there is no PARAMETER to select in the pull-down menu right from the parameter (please, find attached a screen capture)

2) during a normal SINGLE FILE fit using the GUINIER POROD model (I guess it has nothing to do with the model), the fiting procedure do not take care of the limits imposed to the parameters.

Thank you very much for your support.

Sincerely yours.

MARCELO CEOLIN

--

***********************************************************************
Prof. Dr. Marcelo Ceolin
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
UNLP-CONICET
Diagonal 113 y 64
Casilla de Correo 16 (sucursal 4)
(B1906ZAA) La Plata
Argentina

Tel: +54-221-4257291 or 4257430 (int:173 or 162)
Fax: +54-221-4254642
e-mail: mceolin@...639... (work) or mrceolin@...6... (private)
WEB: softmatter.quimica.unlp.edu.ar (main) or www.inifta.unlp.edu.ar

ORCID ID: ORCID ID 0000-0002-2385-7803 
Google Scholar: Google Scholar

***********************************************************************

------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
Sasview-help mailing list
Sasview-help@...643....net
https://lists.sourceforge.net/lists/listinfo/sasview-help