Using JMP - SAS

414 Formula Functions Reference Appendix B
Conditional Functions
Figure B.5 An Example of Using the Match Function
Note: Match ignores trailing spaces and If does not.
Although Match returns missing for any missing values, you can also specifically match missing values.
Choose
Choose is a special case of Match in which the arguments of the condition are a sequence of integers
starting at one. The value of clause replaces the match condition. An example of a Choose condition is
shown in Figure B.6. With Choose, the Formula Editor goes directly to the correct choice clause and
evaluates the result expression.
Figure B.6 Example of a Choose Condition
When you highlight an expression and click Choose, the Formula Editor creates a new conditional
expression with one clause. Use the insert ( ) and delete ( ) buttons on the keypad to add new clauses
or remove unwanted clauses, as described previously for the If conditional.
Choose evaluates the choose expression and goes immediately to the corresponding result expression to
generate the returned value. With Choose, you provide a choosing expression that yields sequential integers
starting at 1 only once, and then you give a choice for each integer in the sequence.
IfMax
Evaluates the first of each pair of arguments and returns the evaluation of the result expression (the second
of each pair) associated with the maximum of the expressions. If more than one expression is the maximum,
the first maximum is returned. If all expressions are missing and a final result is not specified, missing is
returned. If all expressions are missing and a final result is specified, that final result is returned. The test
expressions must evaluate to numeric values, but the result expressions can be anything.