Copying values to an array

[AAZ]

Hi, 

I have an array of values  

"number Quantity{Item}=[0 0 30 40 50 0 60 70]" and want to assign these values to another array Quantity2 and change the index to -2  so  it should equal [30 40 50 0 60 70 0 0]. How to achive that with optmodel. 

[RobPratt]

Here's one way:

proc optmodel;
   set Item = 0..7;
   number Quantity{Item}=[0 0 30 40 50 0 60 70];
   number Quantity2{i in Item} = Quantity[mod(i+2,8)];
   print Quantity Quantity2;
quit;

SAS Output

[1]	Quantity	Quantity2
0	0	30
1	0	40
2	30	50
3	40	0
4	50	60
5	0	70
6	60	0
7	70	0

[AAZ]

Thanks Rob, 

what I am trying to achieve is to take the optimized quantity  "Quantity", offset it x places, and give this output (Quantity) as an input to Quantity2, where I will run another optimization model on it Quantity2.  " I assume I can have both in the same program?"

So Quantity is not actually a number it's a variable and I receive the following error when saying that  

Quantity2{i in Item} = Quantity[mod(i+2,8)];

as Quantity is a var  and Quantity2 is number 

537-782 the value of parameter "Quantity2" depends on a variable

[RobPratt]

If Quantity is a variable, then it sounds like you want to declare Quantity2 as an implicit variable (by using the IMPVAR statement).