The not() function returns the logical inverse of the normal outcome of true and false generated by a logical expression.
Syntax
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not(logical.exp) |
Parameter(s)
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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".
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if not(num(response)) then print "not numeric" |
See Also