GAMS – Data Exchange (GDX) Tools and Utilities attilities
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GAMS – Data Exchange (GDX) Tools and Utilitiesattilities Paul van der Eijk [email protected] GAMS Development Corp. www.gams.com GAMS Software GmbH www.gams.de Informs, San Diego, 2009
Transcript of GAMS – Data Exchange (GDX) Tools and Utilities attilities
GAMS – Data Exchange (GDX)
Tools and Utilitiesattilities
Paul van der Eijk [email protected]
GAMS Development Corp. www.gams.com
GAMS Software GmbH www.gams.de
Informs,
San Diego,
2009
GDX files
Data file for multiple GAMS symbols
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GDX files
Data file for multiple GAMS symbols
No Symbolic Equations
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GDX files
Data file for multiple GAMS symbols
No Symbolic Equations
Binary (no loss of precision)
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GDX files
Data file for multiple GAMS symbols
No Symbolic Equations
Binary (no loss of precision)
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Platform independent
GDX files
Data file for multiple GAMS symbols
No Symbolic Equations
Binary (no loss of precision)
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Platform independent
Contains domain information
GDX files
Data file for multiple GAMS symbols
No Symbolic Equations
Binary (no loss of precision)
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Platform independent
Contains domain information
Can be compressed
GDX files
Data file for multiple GAMS symbols
No Symbolic Equations
Binary (no loss of precision)
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Platform independent
Contains domain information
Can be compressed
GDX Tools do not require a licenseies
GDX files
Data file for multiple GAMS symbols
No Symbolic Equations
Binary (no loss of precision)
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Platform independent
Contains domain information
Can be compressed
GDX Tools do not require a license
Open API for multi language/platformes
Create a GDX file
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Viewing a GDX file
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Viewing a GDX file (GAMS IDE)
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Export GDX file (GAMS IDE)
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View file in Excel
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Export GDX file (GAMS IDE)
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View file in Excel (TOC)
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View file in Excel
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View GDX File GAMS IDE
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GDXDiff
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GDXDiff
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GDXMerge* Generate a few gdx files
$call rm *.gdx
$call gamslib trnsport
$call gams trnsport lp=bdmlp gdx=bdmlp
$call gams trnsport lp=cplex gdx=cplex
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$call gams trnsport lp=cplex gdx=cplex
$call gams trnsport lp=conopt gdx=conopt
$call gams trnsport lp=gurobi gdx=gurobi
$call gams trnsport lp=minos gdx=minos
$call gams trnsport lp=snopt gdx=snopt
$call gams trnsport lp=xa gdx=xa
$call gams trnsport lp=xpress gdx=xpress
$call gdxmerge *.gdx
$call shellexecute /verb=open merged.gdx
GDXMerge
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GDXXRW
Reading and writing Excel spreadsheets
Requires that MS Excel is installed
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GDXXRW
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GDXXRW
$call =gdxxrw.exe data1.xls cmerge=1 par=A rng=sheet1!A1
rdim=2 cdim=2
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GDXXRW
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GDXXRW
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GDXXRW
XLSTalk utility
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GDXXRW
XLSTalk utility
Test if Excel is installed
Open / Close Excel file
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Open / Close Excel file
Run an Excel Macro
GDX API
Support for multiple languages
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GDX API
Support for multiple languages
CC++
Delphi (Pascal)
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Delphi (Pascal)FortranJavaVisual Basic
GDX API
Support for multiple platforms
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GDX API
Support for multiple platforms
All platforms where GAMS is available
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GDX API Examples / Documentation
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Contacting GAMS
Europe
GAMS Software GmbH
Eupener Str. 135-137
50933 Cologne
USA
GAMS Development Corp. 1217 Potomac Street, NW
50933 CologneGermany
Phone: +49 221 949 9170
Fax: +49 221 949 9171
http://www.gams.de
1217 Potomac Street, NW
Washington, DC 20007USA
Phone: +1 202 342 0180
Fax: +1 202 342 0181
http://www.gams.com
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