## AMPL Session from Lecture 16, 10/10/2024

ampl: option solver gurobi;
ampl: reset; model Chukee.mod.txt;
ampl: reset; model Chukee.mod.txt; data Chukee.dat.txt;
ampl: display DataNums;
DataNums :=
1 1   1500
1 2    800
2 1   1200
2 2    700
;

# Testing what the error message will be when DataNums is not set
# correctly...


ampl: reset; model Chukee.mod.txt; data Chukee.dat.txt;

Chukee.dat.txt, line 7 (offset 144):
	expected ; . or number
context:  2		  1200	700  >>> ; <<< 
ampl: reset; model Chukee.mod.txt; data Chukee.dat.txt;

Chukee.dat.txt, line 7 (offset 143):
	expected ; . or number
context:  1200	700  >>> ; <<< 

ampl: reset; model Chukee.mod.txt; data Chukee.dat.txt;
ampl: expand Total_Profit, OpsLimit;
maximize Total_Profit:
	4*x[1] + 3*x[2];

subject to OpsLimit[1]:
	0.000666667*x[1] + 0.000833333*x[2] <= 1;

subject to OpsLimit[2]:
	0.00125*x[1] + 0.00142857*x[2] <= 1;

ampl: solve; display x;
Gurobi 10.0.0: optimal solution; objective 3200
2 simplex iterations
x [*] :=
1  800
2    0
;

# Solving the LP directly (instead of splitting into model and data
# files)

ampl: reset; model ChukeeLP.txt;
ampl: reset; model ChukeeLP.txt; solve; display x1,x2;
Gurobi 10.0.0: optimal solution; objective 3200
2 simplex iterations
x1 = 800
x2 = 0

ampl: