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.