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Re: [Help-glpk] Emulating the AMPL ord() function

From: Meketon, Marc
Subject: Re: [Help-glpk] Emulating the AMPL ord() function
Date: Tue, 30 Dec 2014 16:46:05 -0600

I'm not the expert, but every time I've used "<" with strings in GMPL it came 
out with consistent results.

-----Original Message-----
From: Jason Foster [mailto:address@hidden
Sent: Tuesday, December 30, 2014 5:44 PM
To: Meketon, Marc
Cc: address@hidden
Subject: Re: Emulating the AMPL ord() function

> While I understand your question, in the example that you gave do you really 
> need ord(i) < ord(j), or can you suffice with  i < j  (which seems to work 
> with your example)?  Often all you need is any consistent ordering and not 
> necessarily a specific one.

Agree completely.

So ... ummm ... does glpsol / glpk guarantee that for any given param or set 
the "VAR in SET" construct will have a consistent ordering across multiple uses?


P.S.  Thanks for the reply!

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