fewer than

fewer than (synonymous with less than) evaluates as true if the number of episodes for which a statement is true is less than some specified number.

For example, given the following case fragment,

                      05 Feb 03    06 Oct 03    07 Nov 03
HDL      [2, 5.5]        7.3*         4.8         6.1*
LDL                      1.1          0.8          pending
Trig                                  2.2          0.5*

fewer than 3 HDL are high

less than 2 Trig are not numeric