Search found 3 matches

by opalmafl
2 years ago
Forum: Tools
Topic: Exporting data from MATLAB to GAMS through GDX files
Replies: 0
Views: 4597

Exporting data from MATLAB to GAMS through GDX files

Hi all, I need some help to create a GDX from data I collected in MATLAB. Actually, I need to create a 'set' and a 'parameter'. The problem is that the current parameter is 'set' sized. e.g., the set 'j' has a dimension 1*100, while the parameter is par(i) I created the parameter in MATLAB as follow...
by opalmafl
3 years ago
Forum: Solvers
Topic: Access to Hessian & Jacobian matrices at optimal point (IPOPTH)
Replies: 2
Views: 4104

Re: Access to Hessian & Jacobian matrices at optimal point (IPOPTH)

I Michael, I really appreciate your help and support. I followed your instructions and it was successful. You know, I'm using GAMS V33.2. In this version, apparently, just by using the option 'hessian' it gives you the complete information for the Hessian and Jacobian matrices in a single GDX file. ...
by opalmafl
3 years ago
Forum: Solvers
Topic: Access to Hessian & Jacobian matrices at optimal point (IPOPTH)
Replies: 2
Views: 4104

Access to Hessian & Jacobian matrices at optimal point (IPOPTH)

Dear all, I'm looking for help for a queations that I've not found the solution. Actually, I'm working with NLP's, where I require to do sensitivity analysis. To do so, I need the information regarding the Hessian and Jacobian matrices. Increasing the print_level allows me to visualize this informat...