Constructing Conditions

Understanding Construct Conditions

When you use an IF-THEN statement, you ask SAS to make a comparison. SAS must determine whether a value is equal to another value, greater than another value, and so on.
SAS has the following six main comparison operators:
Table 10.1 Comparison Operators
Symbol
Mnemonic Operator
Meaning
=
EQ
equal to
¬=, ^= , ~=
NE
not equal to (the ¬, ^, or ~ symbol, depending on your keyboard)
>
GT
greater than
<
LT
less than
>=
GE
greater than or equal to
<=
LE
less than or equal to
The symbols in the table are based on mathematical symbols. The letter abbreviations, known as mnemonic operators, have the same effect ...

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