Originally posted by: SystemAdmin

Hello,

i would like to make a tuple in tuple,
this is my code :

K=1..nbcham
J=1..nbroul

tuple cham_data{
int num_ch;
date DA;
date DL;
}

tuple roul_data{
int num_roul;
{string} cat;
cham_data cham[K];
}

roul_data roul[J]
in this code, i have two errors:

• type "date" is not exist
• error in the tuple roul_data

i use ilog OPL 5.5 ( cplex)
please, help me!!!
thanks a lot

#DecisionOptimization
#OPLusingCPLEXOptimizer

Hi,

first of all date is not a keyword in OPL.
Second, arrays of tuples are not allowed inside a tuple.

So what would work:

range K=1..nbcham;
range J=1..nbroul;

tuple cham_data{
int num_ch;
int DA;
int DL;
}

tuple roul_data{
int num_roul;
{string} cat;
//cham_data cham[K];
int num_ch[K];
int DA[K];
int DL[K];
}

Alex
#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: SystemAdmin

Hi,

Thanks alex for your help,

I have J units of accomodation(roul[J]), each unit(roul) is identified by one number, one category and K of rooms (cham[K]).
each room (cham) is identified by a number, date of assignment(DA) and date of liberation(DL)

I must define roul[J] in my model

I wait your reply as soon as possible
thanks a lot Alex,
#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: SystemAdmin

Hi,
thank you very much alex, your solution is worked but i find a problem to
to enter the data about the tuple that contient arrays (roul[J])

this is my code :

int nbroul=9;
int nbch=6;
range K=1..nbch;
range J=1..nbroul ;
tuple roul_data{

int num_R;
string cat;
// cham_data cham[K]
int num_ch[K];
int DA[K];
int DL[K];
}

roul_data roul[J]= [<1, "C", 1,2,3,4,5,6,3,3,3,3,3,3,12,12,12,12,12,12>,
<2, "NC",1,2,3,4,5,6,3,3,3,3,3,3,12,12,12,12,12,12>,
<3, "J", 1,2,3,4,5,6,3,3,3,3,3,3,12,12,12,12,12,12>,
<4, "N", 1,2,3,4,5,6,3,3,3,3,3,3,12,12,12,12,12,12>,
<5, "F", 1,2,3,4,5,6,5,5,3,3,3,3,17,17,12,12,12,12>,
<6, "F", 1,2,3,4,5,6,5,5,5,3,3,3,17,17,17,12,12,12>,
<7, "H", 1,2,3,4,5,6,5,5,5,5,5,5,17,17,17,17,17,17>,
<8, "H", 1,2,3,4,5,6,5,5,3,3,3,3,17,17,12,12,12,12>,
<9, "H", 1,2,3,4,5,6,3,3,3,3,3,3,12,12,12,12,12,12]>;

i find this error : "invalid initialization expression for element "roul" "

can you help me please,
Thanks a lot
abir
#DecisionOptimization
#OPLusingCPLEXOptimizer

Hello,

after the = you should follow the type you used.
So you should write in your .mod

int nbroul=9;
int nbch=6;
range K=1..nbch;
range J=1..nbroul ;

tuple roul_data{

int num_R;
string cat;
// cham_data cham[K]
int num_ch[K];
int DA[K];
int DL[K];
}

roul_data roul[J]=...;
and in your .dat

roul=[
<1, "C", 1,2,3,4,5,6,3,3,3,3,3,3,12,12,12,12,12,12>
<2, "NC",1,2,3,4,5,6,3,3,3,3,3,3,12,12,12,12,12,12>,
<3, "J", 1,2,3,4,5,6,3,3,3,3,3,3,12,12,12,12,12,12>,
<4, "N", 1,2,3,4,5,6,3,3,3,3,3,3,12,12,12,12,12,12>,
<5, "F", 1,2,3,4,5,6,5,5,3,3,3,3,17,17,12,12,12,12>,
<6, "F", 1,2,3,4,5,6,5,5,5,3,3,3,17,17,17,12,12,12>,
<7, "H", 1,2,3,4,5,6,5,5,5,5,5,5,17,17,17,17,17,17>,
<8, "H", 1,2,3,4,5,6,5,5,3,3,3,3,17,17,12,12,12,12>,
<9, "H", 1,2,3,4,5,6,3,3,3,3,3,3,12,12,12,12,12,12]> ;

Alex
#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: SystemAdmin

hello,

thank you very much alex, i don't have un error now in roul[j],
but i have another problem

in my .mod (in constraint1), i must use "while" but i think
is not exist in ILOG OPL (cplex)

this is the code of constraint1:

forall ( i in I, j in J)
while (emp[i].cat != roul[j].cat) do
X[i][j]==0;

i think that i must use script in constraint1, but how can i insert the script in .mod?
Can you help me please???

thanks in advanced.
#DecisionOptimization
#OPLusingCPLEXOptimizer

hello,

could you try

forall ( i in I, j in J:emp[i].cat != roul[j].cat) X[i][j]==0;

instead?

Alex
#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: SystemAdmin

Hello,
i tried this code

forall ( i in I, j in J:emp[i].cat != roul[j].cat) X[i][j]==0;
instead

forall(i in I, j in J)
while (emp[i].cat != roul[j].cat) do
X[i][j]==0;

but i found error in result, i usually find X[i][j]==0
What can i do, so?
Please help me and thanks in advanced
#DecisionOptimization
#OPLusingCPLEXOptimizer

Hello,

I would understand that you reported an error if you found X[i][j]!=0 for a (x,y) such as emp[i].cat != roul[j].cat but what is the issue with having too many X[i][j]==0?
No constraint is violated.

Alex
#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: SystemAdmin

hello,
i will present the code and explain you the problem

int nbemp=6;
int nbch=6;
int nbroul=9;
range I=1..nbemp;
range K=1..nbch;
range J=1..nbroul ;

tuple emp_data {
int num_emp;// Numéro employé
string n_entrep;//nom entrepreneur
string cat ;// catégorie d'employé={ homme, femme, jour, nuit, cadre, non cadre}
int DA; // date d'arrivée de l'employé
int DD; // date de départ de l'employé
}

emp_data emp[I]=...;

tuple roul_data{

int num_R; // numéro roulette(unité d'hébergement)
string cat; // catégorie roulette
int num_ch[K]; // numéro chambre
int DA[K]; // date d'affectation de la chambre
int DL[K]; // date de libération de la chambre
}

roul_data roul[J]=...;

in .dat we have

emp=[<1 , "Marie" , "H" ,15, 23>,
<2 , "Richard" , "H" ,15, 23>,
<3 , "Marie" , "F" ,15, 23>,
<4 , "Marie" , "F" ,15, 23>,
<5 , "Richard" , "F" ,15, 23>,
<6 , "Richard" , "F" ,15, 23>];

roul= [<1, "C", 1,2,3,4,5,6,3,3,3,3,3,3,12,12,12,12,12,12>,
<2, "NC",1,2,3,4,5,6,3,3,3,3,3,3,12,12,12,12,12,12>,
<3, "J", 1,2,3,4,5,6,3,3,3,3,3,3,12,12,12,12,12,12>,
<4, "N", 1,2,3,4,5,6,3,3,3,3,3,3,12,12,12,12,12,12>,
<5, "F", 1,2,3,4,5,6,5,5,3,3,3,3,17,17,12,12,12,12>,
<6, "F", 1,2,3,4,5,6,5,5,5,3,3,3,17,17,17,12,12,12>,
<7, "H", 1,2,3,4,5,6,5,5,5,5,5,5,17,17,17,17,17,17>,
<8, "H", 1,2,3,4,5,6,5,5,3,3,3,3,17,17,12,12,12,12>,
<9, "H", 1,2,3,4,5,6,3,3,3,3,3,3,12,12,12,12,12,12]>;
when i compile, i usually found all x[i][j]==0 (false result)
because with this .dat we musn't have all x[i][j]==0

for example we must forbiden the assignment of employee 1 with categorie "H" to unit of accomodation 1,2,3,4,5 and 6
so X[1][1]=X[1][2]=X[1][3]=X[1][4]=X[1][5]=X[1][6]==0
but X[1][7],X[1][8]and X[1][9] mustn't ==0

i will more explain

in constraint1: we mustn't assign (affect) the employee with categorie "Homme"
(emp[i].cat) to the unit of accomodation with catégorie "Femme"(roul[j].cat)
and we can't write if (emp[i].cat == roul[j].cat) X[i][j]==1;
because we have others constraints to do the assignement(affectation).

taht's why i tried

1/ forall(i in I) forall(j in J)
if (emp[i].cat != roul[j].cat)
X[i][j]==0;
2/ forall(i in I,j in J :emp[i].cat != roul[j].cat ) X[i][j]==0;

but it's false
what can I do,so ?

tahnks alex for your patience and help
#DecisionOptimization
#OPLusingCPLEXOptimizer

Hi,

if you want to have some X[i][j]!=0

maybe you should also write

forall(i in I,j in J :emp[i].cat == roul[j].cat ) X[i][j]!=0;

Alex
#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: SystemAdmin

Hi Alex,

i found an error in constraint4 that's why i usually find all X[i][j]==0
So
forall(i in I,j in J : emp[i].cat != roul[j].cat ) X[i][j]==0; is right

thank you vvvvvvery much alex,
#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: SystemAdmin

hello Alex,

Could you help me please to modeling this constraint(called priority constraint):

i have 2 units of accommodation types (R[t] and Rnt)

R[t]= set of units that contain empty rooms and full rooms
Rnt=set of units that contain only empty rooms = empty units

i would like to affect employees to the empty rooms of units (each employee must have one room)
but i must use the empty rooms of R[t] before using empty units (Rnt)

for exemple:
i have one unit of accomodation R[1] that contains 4 empty rooms and 2 full rooms
and another unit R[2] that contains 6 empty rooms (empty unit)

if i must affect 3 employees to the empty rooms of units.the model will affect the 3 employees to the R[1]
if i must affect 5 employees to the empty rooms of units.So the model will affect 3 employees to the R[1] and 2 employees to the R[2]
Thanks in advanced
Abir,
#DecisionOptimization
#OPLusingCPLEXOptimizer