does freqresp exist in octave?

[Jordi Burguet Castell]

Hello,

I'd like to know if the function freqresp, which can be found in
matlab's Control System Toolbox, is also present in octave or any of
the packages... I've seen __freqresp__ exists, but I cannot find
documentation for it ("Undocumented internal function"). Is it just a
placeholder or something?

The function I am referring to is documented in:
http://www.mathworks.com/access/helpdesk/help/toolbox/control/index.html?/access/helpdesk/help/toolbox/control/ref/freqresp.html

Thanks!
jordi