Step-by-Step Programming with Base SAS 9.4

Comparing Numeric Variables

Often in a program, you need to know whether variables are equal to each other, or whether they are greater than or less than each other. To compare two numeric variables, you can write an IF-THEN/ELSE statement using logical operators.

The following table lists some of the logical operators that you can use for variable comparisons.

Table 8.3 Logical Operators

Symbol	Mnemonic Equivalent	Logical Operation
=	eq	equal
¬=, ^=, ~=	ne	not equal to ( the ¬=, ^=, or ~= symbol, depending on your keyboard)
>	gt	greater than
>=	ge	greater than or equal to
<	lt	less than
<=	le	less than or equal to

In this example, the total cost of each tour in ...