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[Help-glpk] [Fwd: I: Modelling binary variable]
From: |
Andrew Makhorin |
Subject: |
[Help-glpk] [Fwd: I: Modelling binary variable] |
Date: |
Wed, 02 Oct 2013 22:41:14 +0400 |
-------- Forwarded Message --------
From: Pietro Scionti <address@hidden>
To: address@hidden <address@hidden>
Subject: I: Modelling binary variable
Date: Wed, 2 Oct 2013 17:52:19 +0200
Hi Andrew,
I sent this message to the list but I’ve never seen it appear in the
digest or the online archives. Is the address changed since the last
time I used it?
Thank you very much
Pietro
Da: Pietro Scionti
Inviato: lunedì 23 settembre 2013 10:50
A: 'address@hidden'
Oggetto: Modelling binary variable
Hi everyone,
I need help to model this situation: I have a series of binary decision
variables
var x{o in O, t in T, g in G}
and I want to introduce a new binary variable
var z{o in O, t in T}
which takes 1 if and only if
sum{g in G} x[o,t,g] = 1
I tried using a Big-M approach but it only covered one of the two
implications.
Any suggestions?
Thanks,
Pietro
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- [Help-glpk] [Fwd: I: Modelling binary variable],
Andrew Makhorin <=
- Re: [Help-glpk] [Fwd: I: Modelling binary variable], Nigel Galloway, 2013/10/08
- Re: [Help-glpk] [Fwd: I: Modelling binary variable], Meketon, Marc, 2013/10/08
- Re: [Help-glpk] [Fwd: I: Modelling binary variable], Michael Hennebry, 2013/10/08
- Re: [Help-glpk] [Fwd: I: Modelling binary variable], Meketon, Marc, 2013/10/08
- Re: [Help-glpk] [Fwd: I: Modelling binary variable], Meketon, Marc, 2013/10/09
- Re: [Help-glpk] [Fwd: I: Modelling binary variable], Nigel Galloway, 2013/10/10
- Re: [Help-glpk] [Fwd: I: Modelling binary variable], Nigel Galloway, 2013/10/10