+ calculates the sum of 2 values.
– calculates the difference of 2 values.
* calculates the product of 2 values.
/ calculates the division of 2 values.
For example, given the following case fragment,
Cholesterol 7.3 5.6 6.1* Triglyceride 0.8 1.1 1.8 HDL 2.2 0.5*
Triglyceride > HDL + 1.0
Triglyceride < Cholesterol – 4.0
Triglyceride > HDL * 3
Triglyceride > Cholesterol / 2
Note: Calculated Value attributes can be very useful in situations where it is necessary to consider complex operations on one or more attribute values.