Re: [Help-glpk] [Fwd: One Dimensional Set Ordering]

[Meketon, Marc]

Use an indexed parameter:

In your model section declare:

set IdxWeeks;
param weeks[IdxWeeks];

and in your data section have:

param : IdxWeeks : weeks :=
 1  1
 2  4
 3  8
 4  11
;


-----Original Message-----
From: Help-glpk [mailto:address@hidden On Behalf Of Andrew Makhorin
Sent: Sunday, May 01, 2016 12:19 PM
To: address@hidden
Subject: [Help-glpk] [Fwd: One Dimensional Set Ordering]

-------- Forwarded Message --------
From: Curtis Passorelli <address@hidden>
To: address@hidden
Subject: One Dimensional Set Ordering
Date: Sun, 1 May 2016 11:36:39 -0400

Hello,


I have a discrete set.


set weeks:={1,4,8,11};


What I want to do is create a parameter to access the i-th element of the set.
weeks[1] = 1, weeks[2] = 4, weeks[3] = 8 and weeks[4] = 11.


I want to do this assignment dynamically because these week numbers will change 
each time new data is entered into the model.


Do you have any suggestions or code?



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