On Fri, May 30, 2014 at 09:45:18AM +0200, Lutz Vieweg wrote: > On 05/30/2014 09:24 AM, Rick Walsh wrote: > >Average should be the actual average depth. > > Hmm... that is not a conclusive definition, though.
Yes it is. The average depth of all the dives that are included in the set you are looking at. > Do you think that "actual average" should be the > average of the maximal depths of multiple dives, > dividing the sum of those maximal depths by the > number of dives, or should those depths be weighted > by the duration of those multiple dives? The latter. > And BTW: Some dive computers continue to record > samples as long as they are in "dive" mode", even > if the DC is just 0.5m below the surface while the > diver is waiting for a boat pickup. Other dive > computers start/stop recording samples at 1.5m > depth. > This makes a whole lot of difference to the > (IMHO questionable) value of the "average depth" > computation. Totally agree. We actually cut off dives that hover at 50cm - I think our definition of surface is 75cm /D _______________________________________________ subsurface mailing list [email protected] http://lists.hohndel.org/cgi-bin/mailman/listinfo/subsurface
