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I have 14 different predictions about each observation in my dataset and I want to compute an overall prediction for each observation based on these. Would it be better to use the harmonic mean instead of the arithmetic mean?

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    $\begingroup$ Can you explain what you think would be the advantage of using harmonic mean? Some context would be useful. $\endgroup$ – kjetil b halvorsen Sep 30 '17 at 13:53
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Why not using a median instead of these both? Here you could benefit from its robustness against outliers (in your context some very low predictions).

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    $\begingroup$ While this is a good idea, it does not answer the question. $\endgroup$ – Aalawlx Apr 16 '18 at 12:28

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