3 ms·

So, I did forget the correction such that you don't get 2b. The general case is described e.g. in the link below, and this is known as a "zero-corrected harmoni

So, I did forget the correction such that you don't get 2b. The general case is described e.g. in the link below, and this is known as a "zero-corrected harmonic mean". It is actually "obvious" in some cases, but I'll concede that in other cases it's not. https://www.rdocumentation.org/packages/lmomco/versions/2.3.1/topics/harmonic.mean https://www.rdocumentation.org/packages/lmomco/versions/2.3....

jibal 8y ago
Eh? That page says nothing about 1/0 being 0, or anything like that. That function takes the harmonic mean of the non-zero samples, and then adjusts the result by multiplying it by the fraction of the samples that are non-zero. It purposefully avoids dividing by 0. And the result of that function for a==0 and b!=0 is b/2, not b or 2b. So not only is what you claim to be obvious not obvious, it's flat-out wrong.