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Add support for the AMPL modeling and script language

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Victor Zverovich
2015-02-03 08:56:30 -08:00
parent 739b512cee
commit 0bccf97d16
5 changed files with 119 additions and 0 deletions
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27
samples/AMPL/diet.mod Normal file
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set NUTR ordered;
set FOOD ordered;
param cost {FOOD} >= 0;
param f_min {FOOD} >= 0, default 0;
param f_max {j in FOOD} >= f_min[j], default Infinity;
param n_min {NUTR} >= 0, default 0;
param n_max {i in NUTR} >= n_min[i], default Infinity;
param amt {NUTR,FOOD} >= 0;
# --------------------------------------------------------
var Buy {j in FOOD} integer >= f_min[j], <= f_max[j];
# --------------------------------------------------------
minimize Total_Cost: sum {j in FOOD} cost[j] * Buy[j];
minimize Nutr_Amt {i in NUTR}: sum {j in FOOD} amt[i,j] * Buy[j];
# --------------------------------------------------------
subject to Diet {i in NUTR}:
n_min[i] <= sum {j in FOOD} amt[i,j] * Buy[j] <= n_max[i];