id    sex    age     bmi     hdl    ldl   tc     tg 
    1    Nam     57     17    5.000    2.0   4.0    1.1
    2    Nu      64     18    4.380    3.0   3.5    2.1
    3    Nu      60     18    3.360    3.0   4.7    0.8
    4    Nam     65     18    5.920    4.0   7.7    1.1
    5    Nam     47     18    6.250    2.1   5.0    2.1
    6    Nu      65     18    4.150    3.0   4.2    1.5
    7    Nam     76     19    0.737    3.0   5.9    2.6
    8    Nam     61     19    7.170    3.0   6.1    1.5
    9    Nam     59     19    6.942    3.0   5.9    5.4
   10    Nu      57     19    5.000    2.0   4.0    1.9
   11    Nu      63     20    4.217    5.0   6.2    1.7
   12    Nam     51     20    4.823    1.3   4.1    1.0
   13    Nu      60     20    3.750    1.2   3.0    1.6
   14    Nam     42     20    1.904    0.7   4.0    1.1
   15    Nam     64     20    6.900    4.0   6.9    1.5
   16    Nu      49     20    0.633    4.1   5.7    1.0
   17    Nu      44     21    5.530    4.3   5.7    2.7
   18    Nu      45     21    6.625    4.0   5.3    3.9
   19    Nu      80     21    5.960    4.3   7.1    3.0
   20    Nu      48     21    3.800    4.0   3.8    3.1
   21    Nu      61     21    5.375    3.1   4.3    2.2
   22    Nu      45     21    3.360    3.0   4.8    2.7
   23    Nu      70     21    5.000    1.7   4.0    1.1
   24    Nu      51     21    2.608    2.0   3.0    0.7
   25    Nam     63     22    4.130    2.1   3.1    1.0
   26    Nam     54     22    5.000    4.0   5.3    1.7
   27    Nu      57     22    6.235    4.1   5.3    2.9
   28    Nam     70     22    3.600    4.0   5.4    2.5
   29    Nu      47     22    5.625    4.2   4.5    6.2
   30    Nu      60     22    5.360    4.2   5.9    1.3
   31    Nu      60     22    6.580    4.4   5.6    3.3
   32    Nam     50     22    7.545    4.3   8.3    3.0
   33    Nam     60     22    6.440    2.3   5.8    1.0
   34    Nu      55     22    6.170    6.0   7.6    1.4
   35    Nu      74     23    5.270    3.0   5.8    2.5
   36    Nam     48     23    3.220    3.0   3.1    0.7
   37    Nu      46     23    5.400    2.6   5.4    2.4
   38    Nam     49     23    6.300    4.4   6.3    2.4
   39    Nu      69     23    9.110    4.3   8.2    1.4
   40    Nu      72     23    7.750    4.0   6.2    2.7
   41    Nam     51     23    6.200    3.0   6.2    2.4
   42    Nu      58     23    7.050    4.1   6.7    3.3
   43    Nam     60     24    6.300    4.4   6.3    2.0
   44    Nam     45     24    5.450    2.8   6.0    2.6
   45    Nam     63     24    5.000    3.0   4.0    1.8
   46    Nu      52     24    3.360    2.0   3.7    1.2
   47    Nam     64     24    7.170    1.0   6.1    1.9
   48    Nam     45     24    7.880    4.0   6.7    3.3
   49    Nu      64     25    7.360    4.6   8.1    4.0
   50    Nu      62     25    7.750    4.0   6.2    2.5