isstr
Returns true if the input, s, is a string and false otherwise.
Syntax
isstr(s)
Inputs
- s
 - Type: double | integer | char | string | logical | cell | struct | mat
 
Outputs
- R
 - Resulting output, true if s is a string.
 
Example
String input.
R = isstr('This is a string.')
      R = 1