title: How to smooth in Octave?
body: <p>I'm trying to get a piece of MATLAB code to run in Octave, and I've come upon the line:</p>
  
  <pre><code>xsm = smooth(x,0.03,'loess') 
  </code></pre>
  
  <p>which doesn't seem to have an octave equivalent. x is just an array of a few thousand real numbers.</p>
  
  <p>Is there any Octave code out there which will do this for me, and if not, where do I find the algorithm so that I can write my own? And if I do that, how do I contribute it to Octave?</p>