Dan asked about averaging tracks and the answer was to use merge.
But merge is for different devices in the same place at the same time.
What about averaging tracks for the same (or different) device, on
the same trail, but at different times? Can GPSBabel handle that?
I don't see anything in the documentation that suggest it.
If not, any suggestions on how to accomplish it? Assume .gpx. I'm
thinking some kind of moving curve fit and then average the
elevations. But it's not obvious to me how to do this. I've done
least squares fitting and moving averages, but they don't seem to apply.
Thanks for any suggestions