I am trying to solve a sensitivity analysis using Julia (JUMP). I am stuck at the following problem:
I am trying to declare a variable that has both an upper and a lower limit to feed it to the lp_objective_perturbation_range function. That function requires the reference of an array as input.
I have tried the following syntax:
# L?sung Aufgabe 1
println("L?sung Aufgabe 1")
# Produktionsplan auf Grundlage der Ausgangswerte
println("Produktionsplan auf Grundlage der Ausgangswerte")
produktionsplanModell = Model(with_optimizer(GLPK.Optimizer))
# Bereits angefallene Fixkosten
# Modenschau - 8.100.000 USD
# Designer - 860.000 USD
fixkosten = 8100000 + 860000
c = [33.75; 66.25; 26.625; 210; 22; 136; 60.5; 53.5; 143.25; 110; 155.25]
A = [ 0 0 0 0 0 2 0 0 1.5 2 1.5;
0.5 1.5 0 0 0 0 0 0 0 0 0;
0 0 0 1.5 0 0 0 0 0 0 0;
0 0 0 0 1.5 3 0 0 0 0 0;
0 0 0 0 0 0 1.5 0.5 0 0 0;
0 0 1.5 0 0 0 0 0 2 0 0;
0 0 0 0 0 0 0 0 0 3 2.5;]
b = [28000.0; 30000; 9000; 20000; 18000; 30000; 45000]
w = [60000.0;15000;20000; 4000; 6000; 5500; 9000;15000;15000; 7000; 5000]
y = [0.0; 0; 0; 0; 0; 0; 0; 0; 2800; 4200; 3000]
# Definition der Variablen
@variable(produktionsplanModell, w[i] >= x[i] >= y[i] for i=1:11)
Unfortunately, this isn't working. So I need an array that has the following definition and can be assigned to the model:
@variable(produktionsplanModell, 60000 >= x1 >= 0)
@variable(produktionsplanModell, 15000 >= x2 >= 0)
@variable(produktionsplanModell, 20000 >= x3 >= 0)
@variable(produktionsplanModell, 4000 >= x4 >= 0)
@variable(produktionsplanModell, 6000 >= x5 >= 0)
@variable(produktionsplanModell, 5500 >= x6 >= 0)
@variable(produktionsplanModell, 9000 >= x7 >= 0)
@variable(produktionsplanModell, 15000 >= x8 >= 0)
@variable(produktionsplanModell, 15000 >= x9 >= 2800)
@variable(produktionsplanModell, 7000 >= x10 >= 4200)
@variable(produktionsplanModell, 5000 >= x11 >= 3000)
Is it possible to do that? Rest of the program is working fine. Thanks in advance!
question from:
https://stackoverflow.com/questions/65874081/julia-jump-declare-array-with-variable-upper-and-lower-limit 与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…