#### 8.2.45 NaS ¶

Function: `out =` NaS `()` ¶
Function: `out =` NaS `(sz)` ¶

  “Not-a-String". Creates missing-valued string arrays.

  Returns a new `string` array of all missing values of the given size. If no input sz is given, the result is a scalar missing string.

  `NaS` is the `string` equivalent of `NaN` or `NaT`. It represents a missing, invalid, or null value. `NaS` values never compare equal to any value, including other `NaS`s.

  `NaS` is a convenience function which is strictly a wrapper around `string.missing` and returns the same results, but may be more convenient to type and/or more readable, especially in array expressions with several values.

  See also: string.missing