Question

Create a function that returns true if the input is a vector (nx1 or 1xm with n,m >=0) of class type double and false otherwise. • Function Name: isVector • Input: single input which may be any data class • Output: the output is true or false • Useful functions: isRowVector(), isColumnVector() and conditional statements Type these sentences below to test your function: (Just copy and paste these sentences to your code) a = isVector([1 2 3]) b = isVector([1;2;3]) c = isVector([1 2;3 4])

Answer 1

function result = isVector(m)
    [r, c] = size(m);
    if r >= 0 && c == 1
        result = true;
        for i=1:r
            if ~isa(m(i, 1),'double')
                result = false;
            end
        end
    else
        result = false;
    end
end

% Testing 
a = isVector([1 2 3])
b = isVector([1;2;3])