Originally posted by: ChWeil

Hi guys, 

I have a tuple in my model that looks as follows:

machines=2

durations=5

tuple Maint_var { int S; int F;}

(Maint_var} mvar [machines][durations] = ...;

In the data file I wrote:

mvar=#[ [ [<672000,700000>, <872000,1001000>,<1172000,1302000><2072000,2150000><2820000,2900000><3052000,3550000><4072000,4100000>],

[<...,..>,<..,..>,<...,..>,<..,..>,<...,..>,<..,..>],[<...,..>,<..,..>,<...,..>,<..,..>,<...,..>,<..,..>],[<...,..>,<..,..>,<...,..>,<..,..>,<...,..>,<..,..>],[<...,..>,<..,..>,<...,..>,<..,..>,<...,..>,<..,..>] ],

[ [<...,..>....],[<...,..>,..],[<...,..>...],[<...,..>....],[<...,..>,...] ] ]#;

So there are two machines with each five durations which include six tuple pairs each. 

Unfortunately, I get a wrong parsing message in the data file. 

The tuple could also be read out of an excel file, but I haven't found a valid formulation for this so far.

Can anyone help me with it? 

Best regards 

CW

Hi

.mod

range machines=1..2;

range durations=1..5;

tuple Maint_var { int S; int F;};

Maint_var mvar [machines][durations] = ...;

execute
{
writeln(mvar);
}

.dat

mvar=[[<1,2>][<1,3>]];

works fine and gives

[[ <1 2>  <0 0>  <0 0>  <0 0>  <0 0>]
         [ <1 3>  <0 0>  <0 0>  <0 0>  <0 0>]]

regards

https://www.linkedin.com/pulse/puzzles-having-fun-useful-mathematics-alex-fleischer/

Originally posted by: ChWeil

Thank you for your quick response. 

Unfortunately, it does not work for me, because within the durations six different tuples must be included. If I formulate it like this, I get an error for the last tuple as it thinks the amount of tuples are the range of durations. 

And if I write {Maint_var} without {}, I get an error in my next tuple which is written as 

 sorted {Step} Steps [machines][durations] = {100; mv.S | mv in mvar [m][d]} ...

Do you have any idea how to solve it?

Best regards

Hi,

if you need sets instead of tuples then you can write

.mod

range machines=1..2;

range durations=1..5;

tuple Maint_var { int S; int F;};

{Maint_var} mvar [machines][durations] = ...;

execute
{
writeln(mvar);
}

.dat

mvar=[[{<1,2>,<1,4>}][{<1,3>}]];

regards

Originally posted by: ChWeil

Ah perfect. It worked. 

Thanks a lot!

Best regards