! Keywords: Advanced Math / Ordinal Regression / Regression / Statistics;
MIN Z1 + Z2 + Z3 + Z4 + Z5 + Z6 + Z7 + Z8
SUBJECT TO
2) Z1 + 4 X1 - 4 Y1 + 1.2 X2 - 1.2 Y2 + 2.5 X3 - 2.5 Y3 - 5 X4
+ 5 Y4 >= 0
3) Z2 + X1 - Y1 + 0.1 X2 - 0.1 Y2 + X3 - Y3 - X4
- Y4 >= 0
4) Z3 + 3 X1 - 3 Y1 + 1.4 X2 - 1.4 Y2 + 2 X3 - 2 Y3 - 4 X4
+ 4 Y4 >= 0
5) Z4 - X1 + Y1 + 0.2 X2 - 0.2 Y2 - 0.5 X3 + 0.5 X3 + X4
- Y4 >= 0
6) Z5 - 2 X1 + 2 Y1 - 1.2 X2 + 1.2 Y2 - 1.5 X3 + 1.5 Y3 + 3 X4
- 3 Y4 >= 0
7) Z6 - 2 X1 + 2 Y1 - 0.3 X2 + 0.3 Y2 - 1.5 X3 + 1.5 Y3 + 2 X4
- 2 Y4 >= 0
8) Z7 - 2 X1 + 2 Y1 - 0.9 X2 + 0.9 Y2 - X3 + Y3 + 3 X4
- 3 Y4 >= 0
9) Z8 - X1 + Y1 - 1.1 X2 + 1.1 Y2 - 0.5 X3 + 0.5 Y3 + 2 X4
- 2 Y4 >= 0
10) - 0.6 X2 + 0.6 Y2 + 0.5 X3 - 0.5 Y3 + 3 X4 - 3 Y4 = 1
END
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