not() Function

The not() function returns the logical inverse of the normal outcome of true and false generated by a logical expression.

Syntax

not(logical.exp)

Parameter(s)

logical.exp

Expression to test.

Description

If the expression evaluates to 0, then 1 is returned. If the expression evaluates to any nonzero value, 0 is returned.

Example(s)

If response is not numeric, this prints "not numeric".

if not(num(response)) then print "not numeric"

See Also

= Assignment Operator, Boolean Evaluation, BASIC Functions, if Statement, ifr Statement, mod() Function, ne Relational Operator, null Statement, rem() Function, Statements and Functions, then Clause