| Syntax: |
scalar = EXIST(string)
|
The EXIST function accepts one string
as its argument and returns a one (1) if the string is an existing variable
name, and zero (0) is it is not.
Example
If you enter X2=3, the function
EXIST('X2') would have the value 1.
You can even enter: N=2 and
T='X'//RCHAR(N) and the function
EXIST(T) would have the value 1.