Returns 1 if the input is a string.
ISSTRING(val)
|
val |
- |
A series, scalar or string value to test. |
An integer, 1, if the input is a string, else 0.
a = {1};
b = {};
c = "yes";
isstring(a) == 0
isstring(b) == 0
isstring(c) == 1
ISSTRING always returns an integer.
ISSTR is identical to ISSTRING.