only accept odd numbered input arguments

I am writing a function and I would like it to only run if the input argument is odd, is there an easy to specifcy that the input must be odd.

Answer 1

[Adam Danz]

nargin counts the number of input arguments for a function.

mod(x,2) returns 1 when x is odd.

if mod(nargin,2)~=1
    error('There must be an odd number of inputs.')
end