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Re: [Help-glpk] binary variables in CPLEX LP format
From: |
Andrew Makhorin |
Subject: |
Re: [Help-glpk] binary variables in CPLEX LP format |
Date: |
Thu, 6 Oct 2005 23:56:32 +0400 |
> the problem is i need that the Qi variable is binary is to say that
> their value is 0 or 1 and single that, not other.
>
> It thought when define a binary variable this only take 0 or 1 value,
> but some variables take 0.5 or 0.25 values.
Hm... Could you formulate your question more exactly? I solved your
instance without any problems:
Problem:
Rows: 8
Columns: 16 (16 integer, 16 binary)
Non-zeros: 32
Status: INTEGER OPTIMAL
Objective: Z = 2.593322982 (MINimum) 2.513043478 (LP)
No. Row name Activity Lower bound Upper bound
------ ------------ ------------- ------------- -------------
1 n1 111 123.333
2 n2 85 93.3333
3 n3 0 63.3333
4 n4 60 76.6667
5 n5 1 1 =
6 n6 1 1 =
7 n7 1 1 =
8 n8 1 1 =
No. Column name Activity Lower bound Upper bound
------ ------------ ------------- ------------- -------------
1 Q1 * 0 0 1
2 Q2 * 0 0 1
3 Q3 * 0 0 1
4 Q4 * 1 0 1
5 Q5 * 0 0 1
6 Q6 * 1 0 1
7 Q7 * 0 0 1
8 Q8 * 0 0 1
9 Q9 * 1 0 1
10 Q10 * 0 0 1
11 Q11 * 0 0 1
12 Q12 * 0 0 1
13 Q13 * 1 0 1
14 Q14 * 0 0 1
15 Q15 * 0 0 1
16 Q16 * 0 0 1
End of output