Originally posted by: SaschaTS

Hi everyone, 

I am trying to assign values to an array of sets. I am a beginner and have a little trouble. 

GIVEN:

range J=1..maxJ; // days per planning period e.g. 28

range W = 0..maxW-1;// number of weeks per planning period e.g. 4

{int} DaysOfWeek[W];

how can I assign values to DaysOfWeek using execute block.

execute createDaysOfWeek {
    } 

Result should be[ {1, 2,3,4,5,6,7},{8,9,10,11,12,13,14},{15,16,17,18,19,20,21},{22,23,24,25,26,27,28}]             
 

I hope, that my explanation is understandable.

Thanks a lot for your help.

Kind regards,

Sascha

Hi

int maxJ=28;
 int maxW=4;
 
 range J=1..maxJ; // days per planning period e.g. 28

range W = 0..maxW-1;// number of weeks per planning period e.g. 4

{int} DaysOfWeek[w in W]={j | j in J: (j-1) div 7==w};

execute
{
writeln(DaysOfWeek);
}

gives

[{1 2 3 4 5 6 7} {8 9 10 11 12 13 14} {15 16 17 18 19 20 21} {22 23 24 25 26
         27 28}]

regards

Originally posted by: SaschaTS

Hey,

thank you for your answer.

But it is still not the needed approach. I should write this values using execution block with for-loops.

smth. like (but it does not work this way)

execute createDaysOfWeek {

for(var u = 1; u <= maxJ; u++){
    for(r in W) {    
    
DaysOfWeek[r]=u;

    } 
    
}    
}

regards

Hi,

then you could write

int maxJ=28;
     int maxW=4;
     
     range J=1..maxJ; // days per planning period e.g. 28

    range W = 0..maxW-1;// number of weeks per planning period e.g. 4

    {int} DaysOfWeek[w in W]={j | j in J: (j-1) div 7==w};
    {int} DaysOfWeek2[w in W];

    execute
    {
    writeln(DaysOfWeek);
    for(var i in J) DaysOfWeek2[Opl.floor((i-1) / 7)].add(i);
    writeln(DaysOfWeek2);
    }

I wonder why you prefer to use scripting to OPL. We recommend the opposite.

regards