set
i Produkte /A,B,C/
parameters
c(i) cost / A 10, B 5, C 15/
sigmaltd(i) sigma / A 5, B 6, C 7/
mu(i) mu / A 20, B 30, C 40/;
scalar
mut mutotal
ASLn Average service level /0.90/;
mut = sum(i, mu(i));
free variable
O object
z(i) standardized score for product i
MSLn(i) minimum service level
;
equations
Ob object
ASL ASLfunction
MSL MSLfunction
;
ob… O =E= sum(i, c(i)*z(i)*sigmaltd(i));
ASL… sum(i ,(mu(i)/mut)*errorf(z(i))) =G= ASLn;
MSL(i)… errorf(z(i)) =G= MSLn(i);
model inventory /all/;
solve inventory using nlp minimizing O;
Where are the failure? I have a avarage servicelevel about 90%. Why I get for Product A a minimum service level about 37,5 %?
This are the original model:
http://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1932&context=theses
p.39, 5.1 Model One for Type 1 Service Level Constraints
why I dont get the minimum service level?
regards
timi
–
To unsubscribe from this group and stop receiving emails from it, send an email to gamsworld+unsubscribe@googlegroups.com.
To post to this group, send email to gamsworld@googlegroups.com.
Visit this group at http://groups.google.com/group/gamsworld.
For more options, visit https://groups.google.com/groups/opt_out.
Hi timi !
What exactly is wrong with your results ? What aspect of the solution
found is unsatisfying for you ?
Regards
Claudio
On Wed, Jan 29, 2014 at 3:00 PM, Timion wrote:
set
i Produkte /A,B,C/
parameters
c(i) cost / A 10, B 5, C 15/
sigmaltd(i) sigma / A 5, B 6, C 7/
mu(i) mu / A 20, B 30, C 40/;
scalar
mut mutotal
ASLn Average service level /0.90/;
mut = sum(i, mu(i));
free variable
O object
z(i) standardized score for product i
MSLn(i) minimum service level
;
equations
Ob object
ASL ASLfunction
MSL MSLfunction
;
ob… O =E= sum(i, c(i)*z(i)*sigmaltd(i));
ASL… sum(i ,(mu(i)/mut)*errorf(z(i))) =G= ASLn;
MSL(i)… errorf(z(i)) =G= MSLn(i);
model inventory /all/;
solve inventory using nlp minimizing O;
Where are the failure? I have a avarage servicelevel about 90%. Why I get
for Product A a minimum service level about 37,5 %?
This are the original model:
http://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1932&context=theses
p.39, 5.1 Model One for Type 1 Service Level Constraints
why I dont get the minimum service level?
regards
timi
–
“gamsworld” group.
To unsubscribe from this group and stop receiving emails from it, send an
email to gamsworld+unsubscribe@googlegroups.com.
To post to this group, send email to gamsworld@googlegroups.com.
Visit this group at http://groups.google.com/group/gamsworld.
For more options, visit https://groups.google.com/groups/opt_out.
\