Not specifically w.r.t. GPS, but from a mathematical perspective... If you're suggesting averaging by averaging points A & B, then the result= of=20 that with C, then with D, etc, that would be an incorrect definition of t= he=20 term "average". Avg(A,B,C) !=3D Avg(A,Avg(B+C)). For example, the avera= ge of=20 7,8,9 =3D 8. Avg(Avg(7,8) , 9) =3D Avg(7.5,9) =3D 8.25. Bzzzt! So take all lats and avg those, take all lons and avg those, and that sho= uld=20 be the result. Or maybe there's something specific to GPS that makes this all just a loa= d of=20 cr*p? Cheers, -Neil. On Thursday 24 April 2003 21:49, rad0 wrote: > how exactly would I calculate an average of a fixed gps reciever > to eventually get a more accurate lat/lon ?? > > if you take two lat/lon's average, then do this with the very next > available lat/lon > is this any good? > > or if you take 10 lat/lon's get average then average this with the next= ten > > > what's the best way to do this? > > > thanks -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.