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 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