VTYPEX Function

VTYPEX Function

Returns the type (character or numeric) for the value of the specified argument

Category: Variable Information

Syntax

VTYPEX ( expression )

Arguments

expression

• specifies any SAS character expression that evaluates to a variable name .

• Restriction: The value of the specified expression cannot denote an array reference.

Details

If the VTYPEX function returns a value to a variable that has not yet been assigned a length, by default the variable is assigned a length of 1.

VTYPEX returns N for numeric variables and C for character variables .

Comparisons

• VTYPE returns the type of the specified variable. VTYPEX, hovever, evaluates the argument to determine the variable name. The function then returns the type (character or numeric) that is associated with that variable name.

• VTYPE does not accept an expression as an argument. VTYPEX accepts expressions, but the value of the specified expression cannot denote an array reference.

• Related functions return the value of other variable attributes, such as the variable name, informat, and format, among others. For a list, see the 'Variable Information' functions in 'Functions and CALL Routines by Category' on page 270.

Examples

SAS Statements	Results
array x(3) x1-x3; array vx(3) vx1 vx2 vx3 ('x1' 'x2' 'x3'); y=vtypex(vx(1)); put y=;	y=N

See Also

Functions:

• 'Variable Information' functions in 'Functions and CALL Routines by Category' on page 270