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VARRAYX Function

Returns a value that indicates whether the value of the specified argument is an array.

Categories:Variable Information
CAS
Note:This function supports the VARCHAR type.
Table of Contents
Syntax
Required Argument
Details
Comparisons
Example

Syntax

VARRAYX(expression)

Required Argument

expression

specifies a character constant, variable, or expression.

RestrictionThe value of the specified expression cannot denote an array reference.

Details

VARRAYX returns 1 if the value of the given argument is the name of an array; it returns 0 if the value of the given argument is not the name of an array.

Comparisons

  • VARRAY returns a value that indicates whether the specified name is the name of an array. VARRAYX returns a value that indicates whether the value of the specified expression is the name of an array.
  • VARRAY does not accept an expression as an argument. VARRAYX accepts expressions, but the value of the specified variable cannot denote an array reference.
  • Related functions return the value of other variable attributes, such as the variable name, informat, format, among others. For a list, see the Variable Information functions in SAS Functions and CALL Routines by Category.

Example

The following SAS statements produce these results:
SAS Statement
Result
array x(3) x1-x3;
array vx(4) $6 vx1 vx2 vx3 vx4
   ('x' 'x1' 'x2' 'x3');
y=varrayx(vx(1));
z=varrayx(vx(2));
put y=;
put z=;
 
 
y=1
z=0
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Last updated: March 16, 2017