out = NaS () ¶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 NaSs.
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