Re: Documentation, window functions

> Hmm... it is true that average will produce the same results on any
> ordering of the same set of input values, though.  Perhaps the word
> "partition" emcompass that, though then again maybe not.
>
> I'd be happy to fix this if I understand what to fix it to.

I wish I knew how to rephrase it so it is both as simple as now and also
totally clear. We can't complicate it, it's a tutorial.

/Dennis