/se y on
//abs_err
//half_err
2   02/27/95   150.0624  3   0.00009  0.00000     33.83     1.20    0.0418   0.0017
3   03/02/95   150.0655  3   0.00011  0.00000     53.63     0.92    0.0524   0.0018
4   03/27/95   150.0725  3   0.00010  0.00002     19.29     0.93    0.0472   0.0077
5   04/25/95   150.0904  3   0.00009  0.00001     20.02     1.96    0.0433   0.0054
6   05/02/95   150.0981  3   0.00007  0.00000     28.71     2.79    0.0362   0.0022
7   05/04/95   150.0956  3   0.00008  0.00000     20.85     0.40    0.0406   0.0017