!Additive Model Lingo Code

Additive_Model.lg4

!Additive Model Lingo Code 
	write by Mohammad hossein sharifi 
	Aug 2020;
model:
sets:
dmu/1..10/:l;
input/1..4/:si;
output/1..3/:sr;
link1(input,dmu):x;
link2(output,dmu):y;

endsets

data:
x y=@ole('C:\Users\mohammad hossein\Documents\vru\lingo\code\book.xlsx','x','y');
enddata

max=@sum(input(i):si(i))+@sum(output(r):sr(r));
@for(input(i):@sum(dmu(j):l(j)*x(i,j))+si(i)=x(i,o));
@for(output(r):@sum(dmu(j):l(j)*y(r,j))-sr(r)=y(r,o));
@sum(dmu(j):l(j))=1;

calc:
@for(dmu(j):o=j;
@solve();
);
endcalc