- `NAME = inputname (N)`
- `NAME = inputname (N, IDS_ONLY)`

Return the name of the N-th input argument passed to the calling function.

If the input argument is not a named variable, return an empty string.

See also: `nargin`.

### References

- https://www.mathworks.com/help/matlab/ref/inputname.html
- https://octave.sourceforge.io/octave/function/inputname.html