isvector

Test whether the input is a vector (one row or one column).

Syntax

tf = isvector(A)

Description

Returns true when A has at most one dimension whose size is greater than 1 — that is, when A is 1×N, N×1, or a scalar. A 0×0 empty matrix returns false.

Examples

isvector([1 2 3])     % 1
isvector([1;2;3])     % 1
isvector(magic(3))    % 0
isvector(7)           % 1  (scalar is a vector of length 1)

See also

• isscalar — Test whether the input is a 1×1 scalar.
• isempty — Test whether the input has zero elements.
• size — Sizes along all dimensions, or along one specific dimension.
• ndims — Number of dimensions of the input.