"cepa", "cema", "sex", "y"
1, 1, 2,  .93
1, 1, 2, 1.70
1, 1, 1,  .69
1, 1, 1,  .83
1, 2, 2, 1.42
1, 2, 2, 1.96
1, 2, 1,  .5
1, 2, 1, .74
1, 3, 2, 2.22
1, 3, 2, 2.33
1, 3, 1, .86
1, 3, 1, .98
1, 4, 2, 1.25
1, 4, 2, 1.70
1, 4, 1, .56
1, 4, 1, .75
2, 1, 2, 1.76
2, 1, 2, 1.58
2, 1, 1, .67
2, 1, 1, .73
2, 2, 2, 1.85
2, 2, 2, 1.69
2, 2, 1, .72
2, 2, 1, .66
2, 3, 2, 1.96
2, 3, 2, 2.09
2, 3, 1, 1.04
2, 3, 1, .96
2, 4, 2, 1.56
2, 4, 2, 1.90
2, 4, 1, 1.08
2, 4, 1, .8
3, 1, 2, 1.46
3, 1, 2, 1.89
3, 1, 1, .88
3, 1, 1, .96
3, 2, 2, 2.14
3, 2, 2, 2.17
3, 2, 1, 1.00
3, 2, 1, .96
3, 3, 2, 1.62
3, 3, 2, 1.63
3, 3, 1, .82
3, 3, 1, .57
3, 4, 2, 1.88
3, 4, 2, 1.81
3, 4, 1, 1.00
3, 4, 1, 1.11
4, 1, 2, 1.45
4, 1, 2, 1.8
4, 1, 1, .95
4, 1, 1, .86
4, 2, 2, 1.94
4, 2, 2, 2.08
4, 2, 1, .63
4, 2, 1, .87
4, 3, 2, 1.51
4, 3, 2, 1.96
4, 3, 1, .82
4, 3, 1, .64
4, 4, 2, 1.85
4, 4, 2, 1.38
4, 4, 1, .43
4, 4, 1, .59