datetime.iscolumn
datetime: TF = iscolumn (T)
Return true if datetime array is a column vector.
TF = iscolumn (T) returns a logical scalar TF,
which is true, if the datetime array T is a column
vector, and false otherwise. A column vector is a 2-D array for
which size (X) returns [N, 1] with non-negative
N.
Source Code: datetime