When I run I get an error
// MOQ (Minimum Order Quantity)
con2: forall(i in 1..12,j in 1..5)
na_supply_component[j,i]>=na_moq_supplier[j] || na_supply_component[j,i]==0;
It does not allow me to use
Supplier=['q','w','e','r','t'];
n_Supplier=len(Supplier);
r_Supplier=range(n_Supplier);
na_moq_supplier=[10,20,30,40,0]
from docplex.mp.model import Model
x=Model("mymod");
purch_val=x.integer_var_list(n_Supplier,lb=0,ub=10000);
for i in r_Supplier:x.add_constraint(purch_val[i]>=na_moq_supplier[i] or purch_val[i]==0);
.Could you exaplain what can I do to overcome this error.TypeError: Cannot convert a linear constraint to boolean: x1 >= 10
or
from docplex.mp.model import Model
mdl = Model(name='buses')
nbbus40 = mdl.integer_var(name='nbBus40')
nbbus30 = mdl.integer_var(name='nbBus30')
mdl.add_constraint(nbbus40*40 + nbbus30*30 >= 300, 'kids')
mdl.minimize(nbbus40*460 + nbbus30*360)
mdl.solve()
for v in mdl.iter_integer_vars():
print(v," = ",v.solution_value)
print()
print("with the logical constraint")
mdl.add((nbbus40>=7) + (nbbus30>=7)>=1)
mdl.solve()
for v in mdl.iter_integer_vars():
print(v," = ",v.solution_value)
运作良好
并给出
nbBus40 = 6.0
nbBus30 = 2.0
with the logical constraint
nbBus40 = 7.0
nbBus30 = 1.0
从 逻辑约束