need help creating a code

I need to create a code for the following problem in the link. pls help me.. i have to do it by four days..

http://i224.photobucket.com/albums/dd97/nirmal_rockin/Untitled-1copy.jpg

Take values as i=1 to 3; s=4; tij is (3x4 matrix)= 2 4 6 8; 1 3 5 7; 1 2 3 4; Uij=W=30;

[Wayne King]

You should show the code you have written to try and solve your problem along with the places you are getting stuck and the error messages you are getting.

[Nirmal]

Still i have not written the code.. I have no idea of how to start writing for this one.. pls help

[Walter Roberson]

What is given and what is to be found? Are t and U and W constrained ? is s given? What is the maximum i value?

[Nirmal]

now i have updated my question

[Image Analyst]

What is Z?

[Walter Roberson]

My interpretation was that Z is the maximum over Ri.

[Nirmal]

yes Z is the maximum of Ri

[Nirmal]

can i use linprog for this...how?

[Image Analyst]

Oh, okay. I was thinking it was something (some other equation, or expression) that needed to be maximized. So you're saying it's like this: Z = (the maximum R(i) value over all possible index values for i) - basically Z is the desired answer, and once you know that you should know what values of i, j, m, t, U, and W gave rise to that Z.

[Nirmal]

yes. absolutely..

Answer 1

[Matt J]

You would need GA from the Global Optimization Toolbox. The IntCon argument would be used to specify integer-constraints.

[Nirmal]

i cannot use the toolbox as the above code would be a sub-part of the code which i'm developing for big task using PSO.

[Matt J]

Why would LINPROG have been any better than GA?

[Nirmal]

not that sort of.. but i have to implement it in the form of a code. thus not possible to use the toolbox.

Answer 2

[Nirmal]

still. i'm not clear about how to start coding for my problem...

[Matt J]

Well, you Accepted an answer already so people are going to consider teh Question closed. Also, you've announced that you cannot use any black-box solvers like LINPROG or GA. So, there's not a lot of help we can offer.