Geometric and weighted mean

[salvomic]

(12-23-2017 09:29 AM)Arno K Wrote:  

(12-23-2017 09:20 AM)salvomic Wrote:  For geometric mean better than use the product maybe it's better to consider the alternative definition with logarithms, to avoid the multiply by zero:
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Salvo

So you want to force an error if there is a 0 in the list?
Arno

no... and I corrected my post (see now), as also ln(0) returns error, obviously...
Rigorously, geometric mean with zeros doesn't mean anything. And then the geometric mean is calculable only for positive numbers (for the root)...