If-then-else is a high-level programming statement that compares two sets of data in memory and tests the results. If the results are true, the THEN instructions are taken; ...

IF-THEN/ELSE Statements. To perform an operation conditionally, use an IF statement to test an expression. Alternative actions appear in a THEN clause and, optionally, an ELSE statement. The general ...

Using Conditional Logic, building the IF-THEN-ELSE into process control documents for your business, is where the advantage resides. It will address ALL process variables.

if x<y then do; produces the same result as writing if all(x<y) then do; IF statements can be nested within the clauses of other IF or ELSE statements. Any number of nesting levels is allowed. Below ...