Constraints matrix structure visualization

GAMS
1

Hello GAMS world,

Is there any way to visualize the constraints matrix structure?, or how to export the constraints matrix to plot it in Matlab?.

Thanks in advance for your support,


Sincerely yours,
Pedro

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2

Pedro,

You can do this by exporting the constraints into GDX using GAMS/Convert, and then reading from GDX into Matlab via GDXMRW. The attached example shows how to do this. This seems like a nice general example so I added something similar to our data utilities library.

-Steve


On Mon, Sep 9, 2013 at 6:10 AM, PowerChile wrote:

Hello GAMS world,

Is there any way to visualize the constraints matrix structure?, or how to export the constraints matrix to plot it in Matlab?.

Thanks in advance for your support,


Sincerely yours,
Pedro

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jacDump.gms (1.18 KB)

3

Dear Steve,

Thank you very much,


Sincerely yours,
Pedro



On Mon, Sep 9, 2013 at 6:44 PM, Steven Dirkse wrote:

Pedro,

You can do this by exporting the constraints into GDX using GAMS/Convert, and then reading from GDX into Matlab via GDXMRW. The attached example shows how to do this. This seems like a nice general example so I added something similar to our data utilities library.

-Steve


On Mon, Sep 9, 2013 at 6:10 AM, PowerChile wrote:

Hello GAMS world,

Is there any way to visualize the constraints matrix structure?, or how to export the constraints matrix to plot it in Matlab?.

Thanks in advance for your support,


Sincerely yours,
Pedro

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Steven Dirkse, Ph.D.
GAMS Development Corp., Washington DC
Voice: (202)342-0180 Fax: (202)342-0181
sdirkse@gams.com
http://www.gams.com

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PEDRO JAVIER RAMÍREZ TORREALBA
Ingeniero Civil Eléctrico PUC
MSc en Ingeniería Eléctrica PUC
Londres, REINO UNIDO

Celular: +44-(0)75-8069-3119

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