[Octave-patch-tracker] [patch #9743] [octave forge] (statistics) silhouette function

[anonymous]

Follow-up Comment #12, patch #9743 (project octave):

Correct. I think that the function could be made more efficient, because right
now it can kill your pc with large datasets (with a size of tens of thousands
of elements), but otherwise it is fine.

Side note: I guess that MATLAB employs an "improved" version of this function.
Since a few bad elements can make look bad an entire cluster, MATLAB probably
weeds out extreme values when computing the mean distance between a point and
all the other points. That way its silhouette plot looks better. It makes
sense, since detecting and removing outliers is so common in statistical
analysis (for good reasons and sometimes for bad reasons, too).

    _______________________________________________________

Reply to this item at:

  <https://savannah.gnu.org/patch/?9743>

_______________________________________________
  Message sent via Savannah
  https://savannah.gnu.org/