On Sat, Apr 28, 2012 at 4:44 AM, Harry Matthiesen Jensen <freebsd@elgert.dk> wrote:
Can someone tell me how to filter out records with a speed lower than
for example 2km/h?

I am working on a Garmin Dakota 20 "Current.gpx" file, and the filter
options are = -x track,pack,speed,course,split=300s,title=%Y-%m-%dT%T

Everything working perfectly ;-)
..except that I want to remove all records with speed below 2 km/h

I can't think of a way to do that specifically, but if most of your motion is faster than that (2km/h is a pretty slow walk) you can get similar results with the 'simplify'  filter  http://www.gpsbabel.org/htmldoc-development/filter_simplify.html   That'll get rid of the noise at a stop light if you're a cyclist, for example.