deepest, shallowest, average

[Dirk Hohndel]

On Mon, Jun 09, 2014 at 07:25:27PM -0700, Linus Torvalds wrote:
> On Mon, Jun 9, 2014 at 6:56 PM, Dirk Hohndel <dirk at hohndel.org> wrote:
> >
> > Average right now is the average depth of all the dives - not the average
> > of all the deepest depths. From a mathematical point of view this makes
> > perfect sense. But it is extremely unintuitive - especially when the
> > average frequently is less than the minimum :-/
> 
> I suspect we should just start getting rid of the whole "average"
> depth - even within a single dive. I don't think people care.
> 
> The main reason to ever care about the average depth is likely for the
> single-tank SAC rate calculation, but we do that in a much more
> generic way, so never mind. It's all a historical mistake to even
> bring it up.
> 
> So I'd argue for getting rid of the current average depth, and instead
> talk about "mean max depth". And even then, we might go for median
> rather than mean. I suspect median max depth is a more valuable and
> interesting value than the mean max depth.

I decided to just remove the average. This really doesn't provide any
interesting information, whichever semantic we pick.

/D