Transform a matrix to a vector

GAMS
1

Dear members;
How can I transform a matrix to a vector in GAMS in a general form?

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2

Hi Hossein

You should give an example of what you want to do (what kind of vector do you want, what is a general form?)

Cheers

Renger



From: gamsworld@googlegroups.com [mailto:gamsworld@googlegroups.com] On Behalf Of Hossein Karimi
Sent: Dienstag, 20. Mai 2014 08:11
To: gamsworld
Subject: Transform a matrix to a vector



Dear members;
How can I transform a matrix to a vector in GAMS in a general form?

–
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3

for example, I want to change
a=
[1 2 3
4 5 6
7 8 9];
to
b=[1 2 3 4 5 6 7 8 9];

Thanks in advance.


On Tue, May 20, 2014 at 12:23 PM, Renger van Nieuwkoop wrote:

Hi Hossein

You should give an example of what you want to do (what kind of vector do you want, what is a general form?)

Cheers

Renger



From: gamsworld@googlegroups.com [mailto:gamsworld@googlegroups.com] On Behalf Of Hossein Karimi
Sent: Dienstag, 20. Mai 2014 08:11
To: gamsworld
Subject: Transform a matrix to a vector



Dear members;
How can I transform a matrix to a vector in GAMS in a general form?

–
To unsubscribe from this group and stop receiving emails from it, send an email to gamsworld+unsubscribe@googlegroups.com.
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4

Hi Hossein

How about this?



Set i /i1*i3/;

Set j /j1*j2/;

Set k /k1*k6/;



parameters

matrix(i,j)

vector(k)

counter;


\

  • Initialize

matrix(i,j) = uniform(2,10);

counter = 0;



loop(i,

loop(j,

counter = counter + 1

loop(k$(ord(k) = counter), vector(k) = matrix(i,j) ;

);

);

);

display vector;

display matrix;



Cheers

Renger

From: gamsworld@googlegroups.com [mailto:gamsworld@googlegroups.com] On Behalf Of Hossein Karimi
Sent: Dienstag, 20. Mai 2014 10:02
To: gamsworld
Subject: Re: Transform a matrix to a vector



for example, I want to change

a=
[1 2 3
4 5 6
7 8 9];

to
b=[1 2 3 4 5 6 7 8 9];

Thanks in advance.



On Tue, May 20, 2014 at 12:23 PM, Renger van Nieuwkoop wrote:

Hi Hossein

You should give an example of what you want to do (what kind of vector do you want, what is a general form?)

Cheers

Renger



From: gamsworld@googlegroups.com [mailto:gamsworld@googlegroups.com] On Behalf Of Hossein Karimi
Sent: Dienstag, 20. Mai 2014 08:11
To: gamsworld
Subject: Transform a matrix to a vector



Dear members;
How can I transform a matrix to a vector in GAMS in a general form?

–
To unsubscribe from this group and stop receiving emails from it, send an email to gamsworld+unsubscribe@googlegroups.com.
To post to this group, send email to gamsworld@googlegroups.com.
Visit this group at http://groups.google.com/group/gamsworld.
For more options, visit https://groups.google.com/d/optout.

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5

Thanks Ranger,
My problem is to define the k index for vector. I got it. Thanks again.

On 5/20/14, Renger van Nieuwkoop wrote:

Hi Hossein
How about this?

Set i /i1i3/;
Set j /j1j2/;
Set k /k1*k6/;

parameters
matrix(i,j)
vector(k)
counter;

  • Initialize
    matrix(i,j) = uniform(2,10);
    counter = 0;

loop(i,
loop(j,
counter = counter + 1
loop(k$(ord(k) = counter), vector(k) = matrix(i,j) ;
);
);
);
display vector;
display matrix;

Cheers
Renger
From: gamsworld@googlegroups.com [mailto:gamsworld@googlegroups.com] On
Behalf Of Hossein Karimi
Sent: Dienstag, 20. Mai 2014 10:02
To: gamsworld
Subject: Re: Transform a matrix to a vector

for example, I want to change
a=
[1 2 3
4 5 6
7 8 9];
to
b=[1 2 3 4 5 6 7 8 9];
Thanks in advance.

On Tue, May 20, 2014 at 12:23 PM, Renger van Nieuwkoop

wrote:
Hi Hossein
You should give an example of what you want to do (what kind of vector do
you want, what is a general form?)
Cheers
Renger

From: gamsworld@googlegroups.com
[mailto:gamsworld@googlegroups.com] On
Behalf Of Hossein Karimi
Sent: Dienstag, 20. Mai 2014 08:11
To: gamsworld
Subject: Transform a matrix to a vector

Dear members;
How can I transform a matrix to a vector in GAMS in a general form?

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