Re: [Help-glpk] filetype .lp

[Xypron]

Dear Asma,

the CPLEX file format is not aware of sets and indices. The only way you can indicate indices is by using concatenated variable names like a(1,2).

See glpk-4.47/doc/glpk.pdf, section CPLEX LP Format.

Best regards

Xypron



On 14.11.2011 17:38, esma mehiaoui wrote:

otherwise how to specify the data and variable with two dimensions in an .lp file.

 

I look at this on the internet but there are only a simple examples.

i need for example to represent one set (set MySet:=1..5;) and an variable (var Y{i in  MySet, j in  MySet: i!=j} >=0, integer;).

 

Could somebody help me please?

 

Regards

Asma

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