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Re: [Help-glpk] Indexing a subset from 1..n

From: joel mortyn
Subject: Re: [Help-glpk] Indexing a subset from 1..n
Date: Wed, 28 Nov 2012 09:01:45 +1100

How would you specify that?

> Date: Tue, 27 Nov 2012 15:31:59 -0600
> From: address@hidden
> To: address@hidden
> CC: address@hidden
> Subject: Re: [Help-glpk] Indexing a subset from 1..n
> On Wed, 28 Nov 2012, joel mortyn wrote:
> > I have a set of Periods from which I create the subset OpenPeriods when the facility is open.
> > param nPeriods;set Periods, default{1.. nPeriods};param FacilityOpen{p in Periods}, binary;set OpenPeriods:= setof{p in Periods: FacilityOpen[p] = 1} (p);
> > The facility is not open during all periods and I have a constraint that considers the configuration of the facility the previous time it was open. So I am trying to index the set of OpenPeriods from 1...card(OpenPeriods) rather than with p but so far without any luck.
> Define an array that tells you the n-th open period.
> --
> Michael address@hidden
> "On Monday, I'm gonna have to tell my kindergarten class,
> whom I teach not to run with scissors,
> that my fiance ran me through with a broadsword." -- Lily

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