signum fuction with multiple input variables

how to define a signum fuction with multiples input vectors.

like, y = sign(v1, v2, v3......)

where v1, v2, v3..... are vectors

[John D'Errico]

Since signum is only defined for one variable in general (MATLAB or not) what do you want to see for multiple inputs? Give a small example of what you would be looking for, with both the inputs and the outputs you would expect.

Answer 1

[Daniel M]

If the set of v are the same size, then

    y = sign([v1,v2,v3]);

[Rajbir Singh]

Thanx for the help, it works