lingo中t是一个含有七个元素的数组,但只能在0.01,0.05,0.1这三个数中任取,怎么表示?

Question

lingo中t是一个含有七个元素的数组,但只能在0.01,0.05,0.1这三个数中任取,怎么表示?

Answer 1

可以这样写
sets:
s1/1..7/:t;
s2/1..3/:v;
ss(s1,s2):x;
endsets
data:
v=0.01 0.05 0.1;
enddata
@for(s1(i):t(i)=@sum(s2(j):v(j)*x(xi,j)));
@for(s2(j):@sum(s1(i):x(i,j))=1);
@for(ss:@bin(x));