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:
|
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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