|MATLAB Function Reference|
Validate number of output arguments
msg = nargoutchk(low,high,n)
returns an appropriate error message if
n is not between
high. If the number of output arguments is within the specified range,
nargoutchk returns an empty matrix.
You can use
nargoutchk to determine if an M-file has been called with the correct number of output arguments. This example uses
nargout to return the number of output arguments specified when the function was called. The function is designed to be called with one, two, or three output arguments. If called with no arguments or more than three arguments, nargoutchk returns an error message.