VERIFY Function

Returns the position of the first character that is unique to an expression

Category: Character

Syntax

VERIFY ( source,excerpt-1 <, excerpt-n >)

Arguments

source

• specifies any SAS character expression.

excerpt

• specifies any SAS character expression. If you specify more than one excerpt, separate them with a comma.

Details

The VERIFY function returns the position of the first character in source that is not present in any excerpt . If VERIFY finds every character in source in at least one excerpt , it returns a 0.

Examples

SAS Statements	Results
data scores; input Grade : . @@; check='abcdf'; if verify(grade,check)>0 then put @1 'INVALID ' grade=; datalines; a b c b c d f a a q a b d d b ;	; INVALID Grade=q