Id X  Z1  Z2 Y 
    1    28    1    0   13.3
    2    20    1    0    8.9
    3    32    1    0   15.1
    4    22    1    0   10.4
    5    29    0    1   13.1
    6    27    0    1   12.4
    7    28    0    1   13.2
    8    26    0    1   11.8
    9    21    0    0   11.5
   10    27    0    0   14.2
   11    29    0    0   15.4
   12    23    0    0   13.1
   13    25    0    0   13.8