Exporting a Matlab matrix to GAMS

CSV file

GDX file

Matlab

m=2000;

n=2000;

A=rand(m,n);

B=[0,1:n; (1:m)' A];

csvwrite('c:\projects\tmp2\a.csv',B);

m=2000;

n=2000;

A=rand(m,n);

p.name = 'A';

p.type = 'parameter';

p.val = A;

p.form = 'full';

path('c:\gams\win64\24.0',path);

wgdx ('c:\projects\tmp2\data.gdx', p);

Time

3.85 seconds

4.2 seconds

GAMS

table a(*,*)
$offlisting
$ondelim
$include a.csv
$offdelim
$onlisting

parameter a(*,*);
$gdxin data.gdx
$load a

Time

0.72 seconds

0.69 seconds