Set a True Value and a False Value In One Condition

The If() function can be used to test conditions without creating separate rules. It can be used anywhere that a Boolean condition can be used, including in entity and temporal functions.

The If() function returns one of two values, depending on whether a condition is true or false. The If() function uses the following syntax:

• If(<Boolean attribute>, <value-if-true>, <value-if-false>)

Example 1:

the person’s income = If(the person is an employee, 100000, 0)

would infer the following values:

the person's income	the person is an employee
100000	true
0	false
uncertain	uncertain
unknown	unknown

Example 2:

the person’s income = If(the person is an employee, the employment income, the contractor income)

would infer the following values:

the person's income	the person is an employee	the employment income	the contractor income
100000	true	100000	unknown
55000	false	unknown	55000
uncertain	uncertain	unknown	unknown
unknown	unknown	unknown	unknown