VNAME Function

Returns the name of the specified variable.

Category: Variable Information
Restriction: Use only with the DATA step

Syntax

VNAME (var)

Required Argument

var

specifies a variable that is expressed as a scalar or as an array reference.

Restriction You cannot use an expression as an argument.

Details

If the VNAME function returns a value to a variable that has not yet been assigned a length, by default the variable is assigned a length of 200.

Comparisons

  • VNAME returns the name of the specified variable. VNAMEX, however, evaluates the argument to determine a variable name. If the name is a known variable name, the function returns that name. Otherwise, the function returns a blank.
  • VNAME does not accept an expression as an argument. VNAMEX accepts expressions, but the value of the specified expression cannot denote an array reference.
  • VNAME has the same functionality as CALL VNAME.
  • Related functions return the value of other variable attributes, such as the variable label, informat, and 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 this result.
SAS Statement
Result
array x(3) x1-x3;
y=vname(x(1));
put y=;
y=x1

See Also

Functions:
Variable Information functions in SAS Functions and CALL Routines by Category