lingo程序的错误：unable to solve for fixed variable 怎么改正?sets:machine/1..8/:total;line/1..6/:actual;link(machine,line):value;endsetsdata:total=150,79,180,99.5,125,140,95,113.9;value=0.083-0.055-0.07-0.03500.2380.0480.1280.061-0.1030.242

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lingo程序的错误：unable to solve for fixed variable 怎么改正?sets:machine/1..8/:total;line/1..6/:actual;link(machine,line):value;endsetsdata:total=150,79,180,99.5,125,140,95,113.9;value=0.083-0.055-0.07-0.03500.2380.0480.1280.061-0.1030.242
lingo程序的错误：unable to solve for fixed variable 怎么改正?
sets:
machine/1..8/:total;
line/1..6/:actual;
link(machine,line):value;
endsets
data:
total=150,79,180,99.5,125,140,95,113.9;
value=
0.083-0.055-0.07-0.03500.238
0.0480.1280.061-0.1030.242-0.061
0.0530-0.1570.205-0.065-0.078
0.120.033-0.012-0.021-0.0410.093
-0.0250.0870.124-0.012-0.0660.047
0.122-0.11300.0060.0690
0.121-0.01900.14500.166
00.099-0.2020.076-0.010;
enddata
@for(line(i):actual(i)=@sum(machine(j):value(j,i)*total(j)));