Originally posted by: viva0521

Hi, there

I have a problem that contains 29 nodes, some of which are connected to form a certain network.

Let's say, 1st set = AllNodes, consists of two categories nodes, say "H" and "R" nodes, I want create 2 subset with different cost functions. I realized that I need a tuple for creating subset, however, my nodes sequence are randomly distributed as follows:

I(node)/1...29/

Moreover, I want to use different index across all the node for set I, use I(i,j) for first set, H(k,m) for second set and R(p,q) for the last one. 

How can i achieve this? Any comment is highly appreciated!  Thanks in advance! 

Hi,

you could do the following:

{int} I=asSet(1..29);

 

 

{int} H={1,2,3,4,5,6,7,8,9,11,14,16,19,22,24,27};

 

{int} R={10,12,13,15,17,18,20,21,23,25,26,28,29};

 

tuple ti

{

int element;

int fromH;

}

 

{ti} I2={ <e,(e in H)> | e in I};

 

execute

{

writeln(I2);

}

 

assert forall(i in I2:i.fromH==1) (i.element in H);

assert forall(i in I2:i.fromH==0) (i.element in R);

 

regards